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Sun (149)
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Earth (1363)
Mars (4809)
Jupiter (421)
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The Universe (978)
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This artist's concept shows a Super Venus planet on the left, and a Super Earth on the right. Researchers use a concept known as the habitable zone to distinguish between these two types of planets, which exist beyond our solar system.
This artist's concept shows a Super Venus planet on the left, and a Super Earth on the right. Researchers use a concept known as the habitable zone to distinguish between these two types of planets, which exist beyond our solar system.

Toxic Wasteland or Lush Paradise? (Artist Concept)

This artist's concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface.
This artist's concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface.

A Tale of Two Worlds: Silicate Versus Carbon Planets (Artist Concept)

This artist's concept shows a hypothetical 'rejuvenated' planet,a gas giant that has reclaimed its youthful infrared glow. NASA's Spitzer Space Telescope found tentative evidence for one such planet around a dead star, or white dwarf, called PG 0010+280.
This artist's concept shows a hypothetical 'rejuvenated' planet,a gas giant that has reclaimed its youthful infrared glow. NASA's Spitzer Space Telescope found tentative evidence for one such planet around a dead star, or white dwarf, called PG 0010+280.

Hypothetical 'Rejuvenated' Planets (Artist's Concept)

All seven planets discovered in orbit around the red dwarf star TRAPPIST-1 could easily fit inside the orbit of Mercury, the innermost planet of our solar system.
All seven planets discovered in orbit around the red dwarf star TRAPPIST-1 could easily fit inside the orbit of Mercury, the innermost planet of our solar system.

TRAPPIST-1 Comparison to Solar System and Jovian Moons

This diagram illustrates two similar star systems, HD 95086 and HR 8799. Evidence from NASA's Spitzer Space Telescope has pointed to the presence of two dust belts in each system.
This diagram illustrates two similar star systems, HD 95086 and HR 8799. Evidence from NASA's Spitzer Space Telescope has pointed to the presence of two dust belts in each system.

Sibling Star Systems? Dust Structures Suggest So

This infrared image from NASA's Spitzer Space Telescope shows what astronomers are referring to as a 'snake' (upper left) and its surrounding stormy environment.
This infrared image from NASA's Spitzer Space Telescope shows what astronomers are referring to as a 'snake' (upper left) and its surrounding stormy environment.

Where Galactic Snakes Live

This artist's concept shows an exoplanet and debris disk orbiting a polluted white dwarf. White dwarfs are dim, dense remnants of stars similar to the Sun that have exhausted their nuclear fuel and blown off their outer layers.
This artist's concept shows an exoplanet and debris disk orbiting a polluted white dwarf. White dwarfs are dim, dense remnants of stars similar to the Sun that have exhausted their nuclear fuel and blown off their outer layers.

Polluted White Dwarf (Artist's Concept)

NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas-rich blue galaxy. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.
NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas-rich blue galaxy. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.

NGC 454

This artist's conception shows a binary-star, or two-star, system, called HD 113766, where astronomers suspect a rocky Earth-like planet is forming around one of the stars.
This artist's conception shows a binary-star, or two-star, system, called HD 113766, where astronomers suspect a rocky Earth-like planet is forming around one of the stars.

Birth of an Earth-like Planet (Artist concept)

This ultraviolet image from NASA's Galaxy Evolution Explorer is of the large face on spiral galaxy NGC 3344. The inner spiral arms are wrapped so tightly that they are difficult to distinguish.
This ultraviolet image from NASA's Galaxy Evolution Explorer is of the large face on spiral galaxy NGC 3344. The inner spiral arms are wrapped so tightly that they are difficult to distinguish.

Large Face on Spiral Galaxy NGC 3344

This artist's concept illustrates one possible answer to the puzzle of the 'giant galactic blobs.' NASA's Spitzer Space Telescope set its infrared eyes on one well-known blob located 11 billion light-years away.
This artist's concept illustrates one possible answer to the puzzle of the 'giant galactic blobs.' NASA's Spitzer Space Telescope set its infrared eyes on one well-known blob located 11 billion light-years away.

At the Heart of Blobs (Artist Concept)

Resembling sparks from a fireworks display, this image taken by a JPL camera onboard NASA's Hubble Space Telescope shows delicate filaments that are sheets of debris from a stellar explosion in the nearby Large Magellanic Cloud galaxy.
Resembling sparks from a fireworks display, this image taken by a JPL camera onboard NASA's Hubble Space Telescope shows delicate filaments that are sheets of debris from a stellar explosion in the nearby Large Magellanic Cloud galaxy.

Celestial Fireworks

This image from NASA's Kepler mission shows the telescope's full field of view an expansive star-rich patch of sky in the constellations Cygnus and Lyra stretching across 100 square degrees, or the equivalent of two side-by-side dips of the Big Dipper.
This image from NASA's Kepler mission shows the telescope's full field of view an expansive star-rich patch of sky in the constellations Cygnus and Lyra stretching across 100 square degrees, or the equivalent of two side-by-side dips of the Big Dipper.

Kepler's Diamond Mine of Stars

These computer-generated images from NASA's Spitzer Space Telescope chart the development of severe weather patterns on the highly eccentric exoplanet HD 80606b during the days after its closest approach to its parent star.
These computer-generated images from NASA's Spitzer Space Telescope chart the development of severe weather patterns on the highly eccentric exoplanet HD 80606b during the days after its closest approach to its parent star.

Severe Exoplanetary Storm

This artist's image depicts a faraway solar system like our own except for one big difference. Planets and asteroids circle around not one, but two suns. NASA's Spitzer Space Telescope found evidence that such solar systems may be common in the universe.
This artist's image depicts a faraway solar system like our own except for one big difference. Planets and asteroids circle around not one, but two suns. NASA's Spitzer Space Telescope found evidence that such solar systems may be common in the universe.

Two Suns Raise Family of Planetary Bodies (Artist Animation)

This plot shows that a pulsar, the remnant of a stellar explosion, is surrounded by a disk of its own ashes. The disk, revealed by the two data points at the far right from NASA's Spitzer Space Telescope, is the first ever found around a pulsar.
This plot shows that a pulsar, the remnant of a stellar explosion, is surrounded by a disk of its own ashes. The disk, revealed by the two data points at the far right from NASA's Spitzer Space Telescope, is the first ever found around a pulsar.

Circle of Ashes

The Tadpole galaxy is the result of a recent galactic interaction in the local universe. These spectacular images were taken by NASA's Spitzer Wide-area Infrared Extragalactic (SWIRE) Legacy project.
The Tadpole galaxy is the result of a recent galactic interaction in the local universe. These spectacular images were taken by NASA's Spitzer Wide-area Infrared Extragalactic (SWIRE) Legacy project.

A SWIRE Picture is Worth Billions of Years

Evidence for this possible belt was discovered by NASA's Spitzer Space Telescope when it spotted warm dust around the star, presumably from asteroids smashing together. This is an artist's concept.
Evidence for this possible belt was discovered by NASA's Spitzer Space Telescope when it spotted warm dust around the star, presumably from asteroids smashing together. This is an artist's concept.

Band of Rubble (Artist Concept)

This image of the Beehive star cluster points out the location of its first known planets, Pr0201b and Pr0211b, or, as astronomers call them, the first 'b's' in the Beehive.
This image of the Beehive star cluster points out the location of its first known planets, Pr0201b and Pr0211b, or, as astronomers call them, the first 'b's' in the Beehive.

Bees in the Beehive

This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star.
This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA's Spitzer found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star.

Planetary Demolition Derby

This illustration shows the unusual orbit of planet Kepler-413b around a close pair of orange and red dwarf stars. The planet's 66-day orbit is tilted 2.5 degrees with respect to the plane of the binary stars' orbit.
This illustration shows the unusual orbit of planet Kepler-413b around a close pair of orange and red dwarf stars. The planet's 66-day orbit is tilted 2.5 degrees with respect to the plane of the binary stars' orbit.

Star System Bonanza (Illustration)

Black holes are tremendous objects whose immense gravity can distort and twist space-time, the fabric that shapes our universe as this chart from NASA's NuSTAR and ESA's XMM-Newton telescope illustrates.
Black holes are tremendous objects whose immense gravity can distort and twist space-time, the fabric that shapes our universe as this chart from NASA's NuSTAR and ESA's XMM-Newton telescope illustrates.

How to Measure the Spin of a Black Hole (Artist's Concept)

This artist's concept shows Kepler-11 -- the most tightly packed planetary system yet discovered.
This artist's concept shows Kepler-11 -- the most tightly packed planetary system yet discovered.

Kepler-11 Planetary System (Artist Concept)

NuSTAR has added a new twist to the mystery of ultraluminous X-ray sources (ULXs) by showing that one of the ULXs in M82, called M82 X-2, is not a black hole but a pulsar.
NuSTAR has added a new twist to the mystery of ultraluminous X-ray sources (ULXs) by showing that one of the ULXs in M82, called M82 X-2, is not a black hole but a pulsar.

Ultraluminous X-ray Sources in M82 Galaxy

A Neptune-size planet with a clear atmosphere is shown crossing in front of its star in this artist's depiction. Such crossings, or transits, are observed by telescopes like NASA's Hubble and Spitzer to glean information about planets' atmospheres.
A Neptune-size planet with a clear atmosphere is shown crossing in front of its star in this artist's depiction. Such crossings, or transits, are observed by telescopes like NASA's Hubble and Spitzer to glean information about planets' atmospheres.

Seeing Starlight Through a Planet's Rim (Artist's Concept)

Currently displaying images 651-675 of 978
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