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Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607330

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

PIX4620118

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

PIX4572795

Galaxies around NGC 4874 - Galaxies around NGC 4874 - NGC 4874 (right middle) is a large elliptical galaxy belonging to a cluster of galaxies comprising more than a thousand galaxies situated 330 million years - light in the constellation of Coma Berenices (Berenice's Hair). Image obtained by the Hubble Space Telescope (HST). In this NASA/ESA Hubble Space Telescope image, NGC 4874 is the brightest object, located to the right of the frame and seen as a bright star - like core surrounded by a hazy halo. A few of the other galaxies of the cluster are also visible, looking like flying saucers dancing around NGC 4874. But the really remarkable feature of this image is the point - like objects around NGC 4874, revealed on a closer look: almost all of them are clusters of stars that belong to the galaxy. Each of these globular star clusters contains many hundreds of thousands of stars. Recently, astronomers discovered that a few of these point - like objects are not star clusters but ultra -

Galaxies around NGC 4874 - Galaxies around NGC 4874 - NGC 4874 (right middle) is a large elliptical galaxy belonging to a cluster of galaxies comprising more than a thousand galaxies situated 330 million years - light in the constellation of Coma Berenices (Berenice's Hair). Image obtained by the Hubble Space Telescope (HST). In this NASA/ESA Hubble Space Telescope image, NGC 4874 is the brightest object, located to the right of the frame and seen as a bright star - like core surrounded by a hazy halo. A few of the other galaxies of the cluster are also visible, looking like flying saucers dancing around NGC 4874. But the really remarkable feature of this image is the point - like objects around NGC 4874, revealed on a closer look: almost all of them are clusters of stars that belong to the galaxy. Each of these globular star clusters contains many hundreds of thousands of stars. Recently, astronomers discovered that a few of these point - like objects are not star clusters but ultra -

PIX4612000

Open cluster NGC 6939 and galaxy NGC 6946 - Spiral galaxy NGC 6946 and open cluster NGC 6939 - The spiral galaxy NGC 6946 is located about 10 million years ago - light in Cephee. Many star formations are observed here. The cluster of stars NGC 6939, on the right, belongs to our galaxy. Spiral Galaxy NGC 6946 and Open Cluster NGC 6939 are located about 2 degrees southwest of Eta Cepheus. 6946 is a 9.7 magnitude spiral galaxy that was discovered by William Herschel on September 9, 1798 and is about 10 arc minutes in diameter. It is a relatively close galaxy at a distance of about 10 million light years, and was once suspected by Edwin Hubble of being a member of the Local Group of galaxies that includes the Milky Way, but today it is not believed to be a member. Because we are looking at it through the plane of our own galaxy, it is highly obscured by dust. NGC 6946 is sometimes called the Fireworks galaxy because of the number of supernovae that have been discovered there and the galaxy

Open cluster NGC 6939 and galaxy NGC 6946 - Spiral galaxy NGC 6946 and open cluster NGC 6939 - The spiral galaxy NGC 6946 is located about 10 million years ago - light in Cephee. Many star formations are observed here. The cluster of stars NGC 6939, on the right, belongs to our galaxy. Spiral Galaxy NGC 6946 and Open Cluster NGC 6939 are located about 2 degrees southwest of Eta Cepheus. 6946 is a 9.7 magnitude spiral galaxy that was discovered by William Herschel on September 9, 1798 and is about 10 arc minutes in diameter. It is a relatively close galaxy at a distance of about 10 million light years, and was once suspected by Edwin Hubble of being a member of the Local Group of galaxies that includes the Milky Way, but today it is not believed to be a member. Because we are looking at it through the plane of our own galaxy, it is highly obscured by dust. NGC 6946 is sometimes called the Fireworks galaxy because of the number of supernovae that have been discovered there and the galaxy

Jerry Lodriguss

PIX4568549

Constellations of the Altar, the Rule and the Telescope - Constellations of Ara, Norma and Telescopium - The Altar, in the center of the image, is a constellation of the southern hemisphere located between the Centaur and the Wolf. Also visible are the constellations of the Rule (right) and the Telescope. Ara (the Altar) is an inconspicuous constellation in the southern sky. It was once considered part of Centaurus and Lupus but became separated when the 'modern' constellation Norma was created by Lacaille in the 1750s. It was recognised by the Greeks and Romans and was visualised as the altar on which the Centaur, Centaurus, was to sacrifice Lupus, the Wolf. This is reflected in its Latin name, Ara Centauri. The constellation is the 63rd largest in the sky and covers about 237 square degrees. The best - known objects in this field are some diffuse dusty nebulae and star clusters. The only named star in Ara is Karnot Mizbeach (ss Ara). Best seen in the early evening in July

Constellations of the Altar, the Rule and the Telescope - Constellations of Ara, Norma and Telescopium - The Altar, in the center of the image, is a constellation of the southern hemisphere located between the Centaur and the Wolf. Also visible are the constellations of the Rule (right) and the Telescope. Ara (the Altar) is an inconspicuous constellation in the southern sky. It was once considered part of Centaurus and Lupus but became separated when the 'modern' constellation Norma was created by Lacaille in the 1750s. It was recognised by the Greeks and Romans and was visualised as the altar on which the Centaur, Centaurus, was to sacrifice Lupus, the Wolf. This is reflected in its Latin name, Ara Centauri. The constellation is the 63rd largest in the sky and covers about 237 square degrees. The best - known objects in this field are some diffuse dusty nebulae and star clusters. The only named star in Ara is Karnot Mizbeach (ss Ara). Best seen in the early evening in July

PIX4589034

Globular cluster NGC 6752 in the Peacock - Globular cluster NGC 6752 in Pavo - This cluster of stars is about 14,000 years old - light from Earth

Globular cluster NGC 6752 in the Peacock - Globular cluster NGC 6752 in Pavo - This cluster of stars is about 14,000 years old - light from Earth

PIX4565039

Globular cluster M72 in Aquarius - Globular cluster M72 in Aquarius - M72 (NGC 6981) is a cluster of stars located about 50,000 years from Earth. Image obtained by the Hubble Space Telescope. This rich collection of scattered stars, known as Messier 72, is actually a globular cluster, an ancient spherical collection of old stars packed much closer together at its centre. As well as huge numbers of stars in the cluster itself the picture also captures the images of many much more distant galaxies seen between and around the cluster stars. English astronomer Pierre Megchain discovered this rich cluster in August of 1780, but we take Messier 72's most common name from Mechain's colleague Charles Messier, who recorded it as the 72nd entry in his famous catalog of comet - like objects just two months later. This globular cluster lies in the constellation of Aquarius (the Water Bearer) about 50 000 light - years from Earth. This image was taken with the Wide Field Channel of the Advanced Cam

Globular cluster M72 in Aquarius - Globular cluster M72 in Aquarius - M72 (NGC 6981) is a cluster of stars located about 50,000 years from Earth. Image obtained by the Hubble Space Telescope. This rich collection of scattered stars, known as Messier 72, is actually a globular cluster, an ancient spherical collection of old stars packed much closer together at its centre. As well as huge numbers of stars in the cluster itself the picture also captures the images of many much more distant galaxies seen between and around the cluster stars. English astronomer Pierre Megchain discovered this rich cluster in August of 1780, but we take Messier 72's most common name from Mechain's colleague Charles Messier, who recorded it as the 72nd entry in his famous catalog of comet - like objects just two months later. This globular cluster lies in the constellation of Aquarius (the Water Bearer) about 50 000 light - years from Earth. This image was taken with the Wide Field Channel of the Advanced Cam

PIX4565111

Universal equinoxial dial for Latitude 0, deployed Copper and silver-copper instrument, 1830-50 (copper and silver-copper)

Universal equinoxial dial for Latitude 0, deployed Copper and silver-copper instrument, 1830-50 (copper and silver-copper)

MMM5475101

Double-framed sextant, which belonged to Robert Fitzroy (1805-1865), c.1831

Double-framed sextant, which belonged to Robert Fitzroy (1805-1865), c.1831

MMM5476385

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

Coronelli, Vincenzo Maria (1650-1718) (after)

CH7394892

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

Coronelli, Vincenzo Maria (1650-1718) (after)

CH7394888

Panorama of galactic center seen in infrared

Panorama of galactic center seen in infrared

PIX4637943

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of two colliding neutron stars about to merge and explode in kilonova. This type of event produces gravitational waves and a gamma ray burst. This artist's impression shows two tiny but very dense neutron stars at the point at which they merge and explode as a kilonova. Such a very rare event is expected to produce both gravitational waves and a short gamma-ray burst, both of which were observed on 17 August 2017 by LIGO-Virgo and Fermi/INTEGRAL respectively. Subsequent detailed observations with many ESO telescopes confirmed that this object, seen in the galaxy NGC 4993 about 130 million light-years from the Earth, is indeed a kilonova. Such objects are the main source of very heavy chemical elements, such as gold and platinum, in the Universe

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of two colliding neutron stars about to merge and explode in kilonova. This type of event produces gravitational waves and a gamma ray burst. This artist's impression shows two tiny but very dense neutron stars at the point at which they merge and explode as a kilonova. Such a very rare event is expected to produce both gravitational waves and a short gamma-ray burst, both of which were observed on 17 August 2017 by LIGO-Virgo and Fermi/INTEGRAL respectively. Subsequent detailed observations with many ESO telescopes confirmed that this object, seen in the galaxy NGC 4993 about 130 million light-years from the Earth, is indeed a kilonova. Such objects are the main source of very heavy chemical elements, such as gold and platinum, in the Universe

PIX4607586

Galaxy cluster MACS J0717.5+3745 - Galaxy cluster MACS J0717.5+3745 - View of the galaxy cluster MACS J0717.5+3745 visible. This cluster located approximately 5.4 billion years ago - light from the Earth in the constellation of the Coach, is the result of the collision of three clusters of galaxies. Image obtained by the Hubble Space Telescope. This picture shows a region where three galaxy clusters are merging and releasing enormous amounts of energy in the form of X - rays. These distant objects are around 5.4 billion light - years from Earth, in the constellation of Auriga and were imaged during the Massive Cluster Survey, a project to study distant clusters of galaxies using Hubble. The amount of mass in this sea of galaxies is huge, and is great enough to visibly bend the fabric of spacetime. The strange distortion in the shapes of many of the galaxies in this picture, which appear stretched and bent as if they were looked at through a glass bottle, is a result of gravitational le

Galaxy cluster MACS J0717.5+3745 - Galaxy cluster MACS J0717.5+3745 - View of the galaxy cluster MACS J0717.5+3745 visible. This cluster located approximately 5.4 billion years ago - light from the Earth in the constellation of the Coach, is the result of the collision of three clusters of galaxies. Image obtained by the Hubble Space Telescope. This picture shows a region where three galaxy clusters are merging and releasing enormous amounts of energy in the form of X - rays. These distant objects are around 5.4 billion light - years from Earth, in the constellation of Auriga and were imaged during the Massive Cluster Survey, a project to study distant clusters of galaxies using Hubble. The amount of mass in this sea of galaxies is huge, and is great enough to visibly bend the fabric of spacetime. The strange distortion in the shapes of many of the galaxies in this picture, which appear stretched and bent as if they were looked at through a glass bottle, is a result of gravitational le

PIX4565703

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

Walter B Myers

PIX4607362

Diptych sundial, with engraved indications in Chinese, 17th century (ivory and copper)

Diptych sundial, with engraved indications in Chinese, 17th century (ivory and copper)

MMM5469980

Sundial and magnetic compass, inserted in a rectangular box with an ivory lid, 18th century (copper)

Sundial and magnetic compass, inserted in a rectangular box with an ivory lid, 18th century (copper)

MMM5474559

Diptych sundial (closed), presenting a table of latitudes. Ivory instrument, c.1600 (ivory)

Diptych sundial (closed), presenting a table of latitudes. Ivory instrument, c.1600 (ivory)

Reinmann, Paul (1557-1609)

MMM5473372

Sextant, c.1790 by Jesse Ramsden (1735-1800), England

Sextant, c.1790 by Jesse Ramsden (1735-1800), England

Ramsden, Jesse (1735-1800)

MMM5476211

Astronomical clock, 1773 (gilded copper)

Astronomical clock, 1773 (gilded copper)

Janvier, Antide (1751-1835)

XIR212914

Telescope belonging to Sir Isaac Newton, 1671 (object)

Telescope belonging to Sir Isaac Newton, 1671 (object)

BAL2365

Magnet given by Galileo Galilei (1564-1642) to Ferdinando II de' Medici, c.1608 (object)

Magnet given by Galileo Galilei (1564-1642) to Ferdinando II de' Medici, c.1608 (object)

Galilei, Galileo (1564-1642)

DEX5040803

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

Coronelli, Vincenzo Maria (1650-1718) (after)

CH7394887

Pluto Formation - Artist view

Pluto Formation - Artist view

Miller, Ron (b.1947)

PIX7223429

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

One of a pair of monumental terrestrial and celestial globes, first half 20th century (walnut, giltwood & gilt-metal)

Coronelli, Vincenzo Maria (1650-1718) (after)

CH7394893

L-R:Globe; Torquetum, or Protractor; Astrolabium, astronomical instruments belonging to Nikolas of Kues (1401-64)

L-R:Globe; Torquetum, or Protractor; Astrolabium, astronomical instruments belonging to Nikolas of Kues (1401-64)

STF146880

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607314

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the oldest objects in our galaxy. To the unaided eye this glorious globular cluster has the appearance of a hazy star and was frequently confused with Halley's comet when it drifted through Centaurus in 1986. One of the richest in the Milky Way, Omega Cen contains several million stars, but unlike its southern rival, 47 Tucanae, it has a relatively open structure. Like most galactic globular clusters, the stellar population of Omega Cen identifies it as one of the oldest objects associated with the Milky Way, indeed its age is comparable to that of the Universe itself. The cluster contains a large number of RR Lyrae variable stars which enable its distance to be determined as 17,000 light years

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the oldest objects in our galaxy. To the unaided eye this glorious globular cluster has the appearance of a hazy star and was frequently confused with Halley's comet when it drifted through Centaurus in 1986. One of the richest in the Milky Way, Omega Cen contains several million stars, but unlike its southern rival, 47 Tucanae, it has a relatively open structure. Like most galactic globular clusters, the stellar population of Omega Cen identifies it as one of the oldest objects associated with the Milky Way, indeed its age is comparable to that of the Universe itself. The cluster contains a large number of RR Lyrae variable stars which enable its distance to be determined as 17,000 light years

PIX4564400

Horizontal solar and lunar dial, c.1577 (copper and glass)

Horizontal solar and lunar dial, c.1577 (copper and glass)

MMM5469120

Diptych sundial (open), for latitude 5 degrees, with magnetic compass. Ivory instrument, c.1600 (ivory)

Diptych sundial (open), for latitude 5 degrees, with magnetic compass. Ivory instrument, c.1600 (ivory)

Reinmann, Paul (1557-1609)

MMM5473981

Coal-mine, Coal-train, Cobbler, Cobweb, Cock-fight, Coffee, Coffin, Cog-wheel, Collar, Colter, Column, Comet (engraving)

Coal-mine, Coal-train, Cobbler, Cobweb, Cock-fight, Coffee, Coffin, Cog-wheel, Collar, Colter, Column, Comet (engraving)

German School, (19th century) (after)

LLM8650041

An armillary sphere, c.1480 (fresco)

An armillary sphere, c.1480 (fresco)

Botticelli, Sandro (Alessandro di Mariano di Vanni Filipepi) (1444/5-1510)

Raffaello Bencini

BEN44352

Pluto and its satellites seen from Hydra

Pluto and its satellites seen from Hydra

Miller, Ron (b.1947)

PIX7223427

Primitive black hole - Artist view - Primitive Black hole - Artist view - Artist view of a primitive galactic black hole. The presence of 13 billion-year-old black holes was observed by the Spitzer space telescope. These distant black holes appear in the early stages of their formation; their accretion disc contains no dust. This artist's conception illustrates one of the most primitive supermassive black holes known (central black dot) at the core of a young, star-rich galaxy. Astronomers using Nasa's Spitzer Space Telescope have uncovered two of these early objects, dating back to about 13 billion years ago. The monstrous black holes are among the most distant known, and appear to be in the very earliest stages of formation, earlier than any observed so far. Unlike all other supermassive black holes probed to date, this primitive duo, called J0005-0006 and J0303-0019, lacks dust. As the drawing shows, gas swirls around a black hole in what is called an accretion disk. Usually, the ac

Primitive black hole - Artist view - Primitive Black hole - Artist view - Artist view of a primitive galactic black hole. The presence of 13 billion-year-old black holes was observed by the Spitzer space telescope. These distant black holes appear in the early stages of their formation; their accretion disc contains no dust. This artist's conception illustrates one of the most primitive supermassive black holes known (central black dot) at the core of a young, star-rich galaxy. Astronomers using Nasa's Spitzer Space Telescope have uncovered two of these early objects, dating back to about 13 billion years ago. The monstrous black holes are among the most distant known, and appear to be in the very earliest stages of formation, earlier than any observed so far. Unlike all other supermassive black holes probed to date, this primitive duo, called J0005-0006 and J0303-0019, lacks dust. As the drawing shows, gas swirls around a black hole in what is called an accretion disk. Usually, the ac

PIX4584544

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the oldest objects in our galaxy. Omega Centauri is a globular cluster of stars seen in the contellation of Centaurus and is located about 17,000 light - years from Earth. It is one of the oldest object of our galaxy and contains several million stars

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the oldest objects in our galaxy. Omega Centauri is a globular cluster of stars seen in the contellation of Centaurus and is located about 17,000 light - years from Earth. It is one of the oldest object of our galaxy and contains several million stars

W. Promper

PIX4564399

New Horizons near Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies by dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 11,000 miles from Pluto (lower left), 23,000 miles from its largest moon Charon (upper right) and 2.97 billion miles from the Earth. While little is known about Pluto's appearance, here this Kuiper belt dwarf planet is realized as a frozen world cove

New Horizons near Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies by dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 11,000 miles from Pluto (lower left), 23,000 miles from its largest moon Charon (upper right) and 2.97 billion miles from the Earth. While little is known about Pluto's appearance, here this Kuiper belt dwarf planet is realized as a frozen world cove

Walter B Myers

PIX4607366

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. NGC 5139 is the largest and most spectacular globular cluster in the entire night sky, and the largest in our galaxy. At 36 arc minutes, Omega Centauri is larger than the full moon in apparent size. It is located about 17,000 light years away from our Sun and at 4th magnitude, is easily visible without a telescope as a “” star”” in the constellation of Centaurus. It contains about 2 million stars, almost twice as many as M13. The stars in globular clusters are generally older, redder and less massive than our Sun

Centaur Omega globular cluster - The globular cluster Omega Centauri NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. NGC 5139 is the largest and most spectacular globular cluster in the entire night sky, and the largest in our galaxy. At 36 arc minutes, Omega Centauri is larger than the full moon in apparent size. It is located about 17,000 light years away from our Sun and at 4th magnitude, is easily visible without a telescope as a “” star”” in the constellation of Centaurus. It contains about 2 million stars, almost twice as many as M13. The stars in globular clusters are generally older, redder and less massive than our Sun

Stephane Guisard

PIX4564418

Spiral galaxy ESO 269 - 57 in Centaurus - Galaxy ESO 269 - 57 in Centaurus - The spiral galaxy ESO 269 - 57 is about 155 million years away - light from Earth. The picture shows the complex structure of ESO 269 - 57, with an inner “” ring””, of several tightly wound spiral arms, surrounded by two outer ones that appear to split into several branches. Many blue and diffuse objects are visible - most are star - forming regions. The galaxy type is Sa (r) and its distance is about 155 million light - years. It extends over about 4 arcmin in the sky, corresponding to almost 200,000 light - years across. Many other galaxies are visible in the background. This three - colour composite was obtained with VLT ANTU and FORS1 in the morning of March 27, 1999

Spiral galaxy ESO 269 - 57 in Centaurus - Galaxy ESO 269 - 57 in Centaurus - The spiral galaxy ESO 269 - 57 is about 155 million years away - light from Earth. The picture shows the complex structure of ESO 269 - 57, with an inner “” ring””, of several tightly wound spiral arms, surrounded by two outer ones that appear to split into several branches. Many blue and diffuse objects are visible - most are star - forming regions. The galaxy type is Sa (r) and its distance is about 155 million light - years. It extends over about 4 arcmin in the sky, corresponding to almost 200,000 light - years across. Many other galaxies are visible in the background. This three - colour composite was obtained with VLT ANTU and FORS1 in the morning of March 27, 1999

PIX4613539

Centaur Omega globular cluster - The globular cluster Omega Centauri, NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. Image obtained by the VST (VLT Survey Telescope) in Chile. The second released VST (VLT Survey Telescope) image may be the best portrait of the globular star cluster Omega Centauri ever made. Omega Centauri, in the constellation of Centaurus (The Centaur), is the largest globular cluster in the sky, but the very wide field of view of VST and its powerful camera Omegaam can include even the faint outer regions of this spectacular object. This view includes about 300,000 stars

Centaur Omega globular cluster - The globular cluster Omega Centauri, NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. Image obtained by the VST (VLT Survey Telescope) in Chile. The second released VST (VLT Survey Telescope) image may be the best portrait of the globular star cluster Omega Centauri ever made. Omega Centauri, in the constellation of Centaurus (The Centaur), is the largest globular cluster in the sky, but the very wide field of view of VST and its powerful camera Omegaam can include even the faint outer regions of this spectacular object. This view includes about 300,000 stars

PIX4564449

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

PIX4591218

Elliptical galaxy NGC 4881 and distant galaxies - Elliptical galaxy NGC 4881 and distant galaxies - The elliptical galaxy NGC 4881 (upper left) is about 300 million years away - light from Earth. NGC 4881 is located in the Coma galaxy cluster that contains at least 1,000 galaxies and is five times farther from us than the Virgin's cluster. Almost all the objects visible in this photo are located far behind the Coma cluster, except for the spiral galaxy to the right of Ngc 4881. Image obtained by the Hubble Space Telescope in 1994. This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. The brightest object in this picture is NGC 4881. It is a 13th - magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. Except for a 16th - magnitude Coma spiral at the right and a few foreground sta

Elliptical galaxy NGC 4881 and distant galaxies - Elliptical galaxy NGC 4881 and distant galaxies - The elliptical galaxy NGC 4881 (upper left) is about 300 million years away - light from Earth. NGC 4881 is located in the Coma galaxy cluster that contains at least 1,000 galaxies and is five times farther from us than the Virgin's cluster. Almost all the objects visible in this photo are located far behind the Coma cluster, except for the spiral galaxy to the right of Ngc 4881. Image obtained by the Hubble Space Telescope in 1994. This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. The brightest object in this picture is NGC 4881. It is a 13th - magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. Except for a 16th - magnitude Coma spiral at the right and a few foreground sta

PIX4611992

Irregular galaxy NGC 6822 in Sagittarius - Irregular galaxy NGC 6822 in Sagittarius - The galaxy NGC 6822 is about 1.6 million years away - light from Earth. She belongs to our local group. Image obtained with a telescope of 35 cm, 12 hours of poses. The irregular dwarf galaxy NGC 6822 is located at only 1,6 million light year. It is a member of our local group and the third nearest galaxy to the Milky Way after the Sagittarius Dwarf Elliptical and the Magellanic Clouds. The galaxy was discovered by Barnard in 1881 using a 6 inch refractor. It is very similar to the LMC with its weak bar and its irregular distribution of bright OB associations and HII regions. In 1925 in a classic paper, Edwin Hubble reported on several bright objects in NGC 6822, later found to represent a grouping of bright star clusters and HII regions. The galaxy is rich in neutral hydrogen gas, the essential fuel of star formation. NGC 6822 started forming stars some 10 billion years ago. Similar to the LMC it has

Irregular galaxy NGC 6822 in Sagittarius - Irregular galaxy NGC 6822 in Sagittarius - The galaxy NGC 6822 is about 1.6 million years away - light from Earth. She belongs to our local group. Image obtained with a telescope of 35 cm, 12 hours of poses. The irregular dwarf galaxy NGC 6822 is located at only 1,6 million light year. It is a member of our local group and the third nearest galaxy to the Milky Way after the Sagittarius Dwarf Elliptical and the Magellanic Clouds. The galaxy was discovered by Barnard in 1881 using a 6 inch refractor. It is very similar to the LMC with its weak bar and its irregular distribution of bright OB associations and HII regions. In 1925 in a classic paper, Edwin Hubble reported on several bright objects in NGC 6822, later found to represent a grouping of bright star clusters and HII regions. The galaxy is rich in neutral hydrogen gas, the essential fuel of star formation. NGC 6822 started forming stars some 10 billion years ago. Similar to the LMC it has

R. Gendler

PIX4613022

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607290

Sagittarius dwarf irregular galaxy - SagDig - Sagittarius dwarf irregular galaxy - Image of the irregular dwarf galaxy ESO 594 - 4 located 3.5 million years ago - light seen by the Hubble space telescope on August 18, 2003. The Sagittarius dwarf irregular galaxy (SagDig, ESO 594 - 4) lies some 3.5 million light - years (1.1 Megaparsecs) from us. Background galaxies (reddish/brown extended objects with spiral arms and halos) are located even further beyond SagDig at several tens of millions parsecs away. This dwarf irregular galaxy was observed by the Advanced Camera for Surveys on - board the Hubble Space Telescope on 18 August 2003. Fifty-minute exposures were taken in blue, green and red filters

Sagittarius dwarf irregular galaxy - SagDig - Sagittarius dwarf irregular galaxy - Image of the irregular dwarf galaxy ESO 594 - 4 located 3.5 million years ago - light seen by the Hubble space telescope on August 18, 2003. The Sagittarius dwarf irregular galaxy (SagDig, ESO 594 - 4) lies some 3.5 million light - years (1.1 Megaparsecs) from us. Background galaxies (reddish/brown extended objects with spiral arms and halos) are located even further beyond SagDig at several tens of millions parsecs away. This dwarf irregular galaxy was observed by the Advanced Camera for Surveys on - board the Hubble Space Telescope on 18 August 2003. Fifty-minute exposures were taken in blue, green and red filters

PIX4613853

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

Omega nebula (M17) in Sagittarius - The Omega nebula (M17) in Sagittarius - View of the Omega nebula (M17/NGC 6618) located in the constellation Sagittarius at a distance of 5700 light years. This object derives its name from its looped shape reminiscent of the Greek letter when the nebula is seen in a telescope. The gas cloud is unusual in that it does not appear to be illuminated by the bright stars that commonly found in emission nebulae such as this. However, the nebulosity is very bright, so the exciting stars must be hidden within the cloud, an idea confirmed by the infrared brightness of the nebula. As well as exciting the nebula we can see, the embedded stars heat the dust that surrounds them, so M17 is one of the brightest objects in the infrared sky. It is about 6000 light years distant

PIX4620153

Constellations of Sagittarius and the Southern Crown - Constellations of Sagittarius and Corona Australis - From ancient times the constellation of Sagittarius (the Archer) was represented as a Centaur, half man, half horse, ready to fire his/its bow and arrow at the heart of Scorpius, the Scorpion. The constellation is the 15th largest in the sky and covers about 867 square degrees, including the brightest part of the Milky Way. It contains no fewer than 15 Messier objects. Sagittarius is a zodiacal constellation, so the ecliptic, the apparent path of the Sun, among the stars, pases through it, between M8 and M20. The much smaller constellation of Corona Australis (the Southern Crown) is quite distinctive to the eye though its stars are fainter than those in neighbouring Sagittarius. It is quite ancient having be recognised by Ptolemy, and one legend has it that it represents the coronet worn by Sagittarius. Who knows. It is 80th in size among the 88 constellations and covers 128 squa

Constellations of Sagittarius and the Southern Crown - Constellations of Sagittarius and Corona Australis - From ancient times the constellation of Sagittarius (the Archer) was represented as a Centaur, half man, half horse, ready to fire his/its bow and arrow at the heart of Scorpius, the Scorpion. The constellation is the 15th largest in the sky and covers about 867 square degrees, including the brightest part of the Milky Way. It contains no fewer than 15 Messier objects. Sagittarius is a zodiacal constellation, so the ecliptic, the apparent path of the Sun, among the stars, pases through it, between M8 and M20. The much smaller constellation of Corona Australis (the Southern Crown) is quite distinctive to the eye though its stars are fainter than those in neighbouring Sagittarius. It is quite ancient having be recognised by Ptolemy, and one legend has it that it represents the coronet worn by Sagittarius. Who knows. It is 80th in size among the 88 constellations and covers 128 squa

PIX4593652

Charles-Joseph Messier (1730-1817) observations of a nebula of Andromeda's belt 1807 (engraving) (b/w photo)

Charles-Joseph Messier (1730-1817) observations of a nebula of Andromeda's belt 1807 (engraving) (b/w photo)

French School, (19th century)

ACD224709

Double star Gliese 623 - Double star system Gliese 623 in Hercules - Gliese 623 is a double star located about 25 years ago - light in the constellation Hercules. The Hubble space telescope was able for the first time to obtain an image of the two stars that make up this system, in June 1994. The two stars are separated by about twice the distance from Earth to Sun. On the right, 623b, a star 60,000 times less bright than the Sun, and 10 times less massive. Its nature is misidentified, it's a red dwarf or a brown dwarf. A dim double star system cataloged as Gliese 623 lies 25 light - years from Earth, in the constellation of Hercules. The individual stars of this binary system were distinguished for the first time when the Hubble Space Telescope's Faint Object Camera recorded this image in June 1994. They are separated by 200 million miles - about twice the Earth/Sun distance. On the right, the fainter Gliese 623b is 60,000 times less luminous than the Sun and approximately 10 times le

Double star Gliese 623 - Double star system Gliese 623 in Hercules - Gliese 623 is a double star located about 25 years ago - light in the constellation Hercules. The Hubble space telescope was able for the first time to obtain an image of the two stars that make up this system, in June 1994. The two stars are separated by about twice the distance from Earth to Sun. On the right, 623b, a star 60,000 times less bright than the Sun, and 10 times less massive. Its nature is misidentified, it's a red dwarf or a brown dwarf. A dim double star system cataloged as Gliese 623 lies 25 light - years from Earth, in the constellation of Hercules. The individual stars of this binary system were distinguished for the first time when the Hubble Space Telescope's Faint Object Camera recorded this image in June 1994. They are separated by 200 million miles - about twice the Earth/Sun distance. On the right, the fainter Gliese 623b is 60,000 times less luminous than the Sun and approximately 10 times le

PIX4572158

The Night; La Nuit, 1946 (oil on canvas)

The Night; La Nuit, 1946 (oil on canvas)

Miro, Joan (1893-1983)

CH825649

Exoplanets around 70 Virginis - A jovian planet orbiting 70 Virginis - Artist's view of the extrasolar planet 70 Vir B, a giant gas planet orbiting around a solar star, about 78 years old - light from the Sun. This exoplanet has about 6 times the mass of Jupiter and its distance from its star 70 Virginis is almost the same as that of Mercury from the Sun. A ringed 70 Vir B presides over the hot and airless terrain of a hypothetical moon. While it is not known if 70 Vir B has rings, it is certainly possible. 70 Vir B's rings would have no ice in them due to is proximity to its sun. Such rings would likely be less than 100 million years old and could have been formed from the shattered remnants of an asteroid that wondered too close to this giant planet. 70 Vir B's eccentric orbit would increase the likelihood of its encountering other objects in orbit around 70 Virginis. About 78 light years from the Earth astronomers believe that there is a large planet orbiting 70 Virginis, a type G5V

Exoplanets around 70 Virginis - A jovian planet orbiting 70 Virginis - Artist's view of the extrasolar planet 70 Vir B, a giant gas planet orbiting around a solar star, about 78 years old - light from the Sun. This exoplanet has about 6 times the mass of Jupiter and its distance from its star 70 Virginis is almost the same as that of Mercury from the Sun. A ringed 70 Vir B presides over the hot and airless terrain of a hypothetical moon. While it is not known if 70 Vir B has rings, it is certainly possible. 70 Vir B's rings would have no ice in them due to is proximity to its sun. Such rings would likely be less than 100 million years old and could have been formed from the shattered remnants of an asteroid that wondered too close to this giant planet. 70 Vir B's eccentric orbit would increase the likelihood of its encountering other objects in orbit around 70 Virginis. About 78 light years from the Earth astronomers believe that there is a large planet orbiting 70 Virginis, a type G5V

Walter B Myers

PIX4573224

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula (M57) in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. With a magnitude of 9.0, this nebula is easily observed with a small telescope. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula (M57) in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. With a magnitude of 9.0, this nebula is easily observed with a small telescope. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

Jerry Lodriguss

PIX4623312

Crab Pulsar in Nebula M1 - The Crab pulsar: This false-colored image obtained by the Hubble Space Telescope shows the central region of the Crab Nebula or resides its pulsar. The pulsar is visible in the center of the image. It is a very dense neutron star from the explosion of a massive supernova star. This star quickly rotates on itself developing a powerful magnetic field, emitting beams of light and radio waves. M1 is located about 6000 light-years in the constellation Taurus.. In 1054 AD, during the Song dynasty, Chinese astronomers spotted a bright new star in the night sky. This newcomer turned out to be a violent explosion within the Milky Way, caused by the spectacular death of a star some 1600 light-years away. This explosion created one of the most well-studied and beautiful objects in the night sky - the Crab Nebula. The beautiful result of this cataclysmic Type II supernova is shown here, imaged by the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys. Unlike m

Crab Pulsar in Nebula M1 - The Crab pulsar: This false-colored image obtained by the Hubble Space Telescope shows the central region of the Crab Nebula or resides its pulsar. The pulsar is visible in the center of the image. It is a very dense neutron star from the explosion of a massive supernova star. This star quickly rotates on itself developing a powerful magnetic field, emitting beams of light and radio waves. M1 is located about 6000 light-years in the constellation Taurus.. In 1054 AD, during the Song dynasty, Chinese astronomers spotted a bright new star in the night sky. This newcomer turned out to be a violent explosion within the Milky Way, caused by the spectacular death of a star some 1600 light-years away. This explosion created one of the most well-studied and beautiful objects in the night sky - the Crab Nebula. The beautiful result of this cataclysmic Type II supernova is shown here, imaged by the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys. Unlike m

PIX4583169

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

PIX4564826

Objects used by Louis XVI (1754-93) and the royal family during their imprisonment in the Temple (photo)

Objects used by Louis XVI (1754-93) and the royal family during their imprisonment in the Temple (photo)

French School, (18th century)

XIR245194

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source in the constellation, it is also called Virgo A. Image made with Siding Spring's 3.9m telescope. Messier 87 (NGC 4486) lies near the centre of the nearby cluster of galaxies in Virgo at a distance of about 60 million light years. Although the physical boundaries of elliptical galaxies are not well defined, their mass can be, and by any standards M87 is enormous. It contains several thousand billion stars. Associated with this giant galaxy are large numbers of globular clusters, visible in this photograph as the cloud of slightly fuzzy objects around it. Like all ellipticals, M 87 is composed mainly of old stars and is largely devoid of the materials needed to make new ones. The galaxy is not inert however; high energy X - rays have been detected from an extensive oute

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source in the constellation, it is also called Virgo A. Image made with Siding Spring's 3.9m telescope. Messier 87 (NGC 4486) lies near the centre of the nearby cluster of galaxies in Virgo at a distance of about 60 million light years. Although the physical boundaries of elliptical galaxies are not well defined, their mass can be, and by any standards M87 is enormous. It contains several thousand billion stars. Associated with this giant galaxy are large numbers of globular clusters, visible in this photograph as the cloud of slightly fuzzy objects around it. Like all ellipticals, M 87 is composed mainly of old stars and is largely devoid of the materials needed to make new ones. The galaxy is not inert however; high energy X - rays have been detected from an extensive oute

PIX4611461

Aquarius Constellation - Constellation of Aquarius - Field around the Aquarius constelllation. The Helix planetary nebula appears as a red dot towards the center of the image. Aquarius (The Water Carrier) is a large but relatively insconspicuous southern zodiacal constellation and has an area of about 980 square degrees, which makes it the 10th largest. Its origins as a constellation can be traced back to Babylonian times and has usually been delineated as a figure pouring water from a jar in the general direction of Capricornus and Piscis Austrinus, themselves quite watery constellations. The Sun is in this part of the sky in February and March, following the Ecliptic. The constellation embraces many objects of telescopic interest, including the Helix nebula and the Mira - like variable star R Aquarii. Also notable are the globular clusters M2 (NGC 7089) and the Saturn planetary nebula NGC 7009. Best seen in the early evening in August

Aquarius Constellation - Constellation of Aquarius - Field around the Aquarius constelllation. The Helix planetary nebula appears as a red dot towards the center of the image. Aquarius (The Water Carrier) is a large but relatively insconspicuous southern zodiacal constellation and has an area of about 980 square degrees, which makes it the 10th largest. Its origins as a constellation can be traced back to Babylonian times and has usually been delineated as a figure pouring water from a jar in the general direction of Capricornus and Piscis Austrinus, themselves quite watery constellations. The Sun is in this part of the sky in February and March, following the Ecliptic. The constellation embraces many objects of telescopic interest, including the Helix nebula and the Mira - like variable star R Aquarii. Also notable are the globular clusters M2 (NGC 7089) and the Saturn planetary nebula NGC 7009. Best seen in the early evening in August

PIX4594337

Star formation regions NGC 3576 and 3603 in Carina - NGC 3576 (right) is located about 7000 years - light from Earth; NGC 3603 (left) is twice as far away. These two nebulae are located in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. These two star - formation regions appear side by side in the sky and seem to be linked as parts of an extensive nebula. However, the apparent intimacy is line - of - sight effect because these two objects are at quite different distances from the Sun. The curious looped nebula NGC 3576 is about 7000 light years from us while its neighbour NGC 3603 is more than twice as far away. That NGC 3603 is the more distant is confirmed by its colour, which is a ruddier red than the pinkish hue of NGC 3576. The change in colour is due to absorption of the blue - light component of the nebulosity by dust particles in the much longer line of sight. This effect is known as interstellar reddening, though it would be better described as 'de

Star formation regions NGC 3576 and 3603 in Carina - NGC 3576 (right) is located about 7000 years - light from Earth; NGC 3603 (left) is twice as far away. These two nebulae are located in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. These two star - formation regions appear side by side in the sky and seem to be linked as parts of an extensive nebula. However, the apparent intimacy is line - of - sight effect because these two objects are at quite different distances from the Sun. The curious looped nebula NGC 3576 is about 7000 light years from us while its neighbour NGC 3603 is more than twice as far away. That NGC 3603 is the more distant is confirmed by its colour, which is a ruddier red than the pinkish hue of NGC 3576. The change in colour is due to absorption of the blue - light component of the nebulosity by dust particles in the much longer line of sight. This effect is known as interstellar reddening, though it would be better described as 'de

PIX4619187

Andromede galaxy (M31) seen in X and infrared - Andromeda galaxy infrared and X - Ray composite - Andromede spiral galaxy seen in X-ray (blue) by the XMM - Newton space telescope and in infrared (orange) by the Herschel space telescope. This mosaic of the Andromeda spiral galaxy highlights explosive stars in its interior, and cooler, dusty stars forming in its many rings. The image is a combination of observations from the Herschel Space Observatory taken in infrared light (seen in orange hues), and the XMM - Newton telescope captured in X - rays (seen in blues). Herschel provides a detailed look at the cool clouds of star birth that line the galaxy's five concentric rings. Massive young stars are heating blankets of dust that surround them, causing them to glow in the longer - wavelength infrared light, known as far - infrared, that Herschel sees. In contrast, XMM - Newton is capturing what happens at the end of the lives of massive stars. It shows the high - energy X - rays that come

Andromede galaxy (M31) seen in X and infrared - Andromeda galaxy infrared and X - Ray composite - Andromede spiral galaxy seen in X-ray (blue) by the XMM - Newton space telescope and in infrared (orange) by the Herschel space telescope. This mosaic of the Andromeda spiral galaxy highlights explosive stars in its interior, and cooler, dusty stars forming in its many rings. The image is a combination of observations from the Herschel Space Observatory taken in infrared light (seen in orange hues), and the XMM - Newton telescope captured in X - rays (seen in blues). Herschel provides a detailed look at the cool clouds of star birth that line the galaxy's five concentric rings. Massive young stars are heating blankets of dust that surround them, causing them to glow in the longer - wavelength infrared light, known as far - infrared, that Herschel sees. In contrast, XMM - Newton is capturing what happens at the end of the lives of massive stars. It shows the high - energy X - rays that come

PIX4609049

Star births in the nebula NGC 6729 - Young stars in the nebula NGC 6729 - Close up on a star-forming region. The new stars are invisible, hidden behind the dust cloud at the top left of the image, but the material they eject at very high speed causes colorful and luminous arcs in contact with the surrounding gas. Image obtained in Chile with the VLT. This very detailed false - colour image from Eso's Very Large Telescope shows the dramatic effects of very young stars on the dust and gas from which they were born in the star - forming region NGC 6729. The baby stars are invisible in this picture, being hidden behind dust clouds at the upper left of the picture, but material they are ejecting is crashing into the surroundings at speeds of that can be as high as one million kilometres per hour. These shocks cause the gas to shine and create the strangely coloured glowing arcs and blobs known as Herbig - Haro objects. In this view the Herbig - Haro objects form two lines marking out the pr

Star births in the nebula NGC 6729 - Young stars in the nebula NGC 6729 - Close up on a star-forming region. The new stars are invisible, hidden behind the dust cloud at the top left of the image, but the material they eject at very high speed causes colorful and luminous arcs in contact with the surrounding gas. Image obtained in Chile with the VLT. This very detailed false - colour image from Eso's Very Large Telescope shows the dramatic effects of very young stars on the dust and gas from which they were born in the star - forming region NGC 6729. The baby stars are invisible in this picture, being hidden behind dust clouds at the upper left of the picture, but material they are ejecting is crashing into the surroundings at speeds of that can be as high as one million kilometres per hour. These shocks cause the gas to shine and create the strangely coloured glowing arcs and blobs known as Herbig - Haro objects. In this view the Herbig - Haro objects form two lines marking out the pr

PIX4620300

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