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The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist's concept, likely has an atmosphere thicker than Earth's but with ingredients that could be similar to those of Earth's atmosphere.
The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist's concept, likely has an atmosphere thicker than Earth's but with ingredients that could be similar to those of Earth's atmosphere.

55 Cancri e with Atmosphere (Artist's Concept)

The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist's concept, likely has an atmosphere thicker than Earth's but with ingredients that could be similar to those of Earth's atmosphere.

Mission: Spitzer Space Telescope
ID#: PIA22069
Added: 2017-11-16

Views: 530

55 Cancri e with Atmosphere (Artist's Concept)

The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist's concept, likely has an atmosphere thicker than Earth's but with ingredients that could be similar to those of Earth's atmosphere.

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This artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole -- and a jet of hot gas, called plasma.
This artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole -- and a jet of hot gas, called plasma.

Black Hole With Jet (Artist's Concept)

This artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole -- and a jet of hot gas, called plasma.

Mission: NuSTAR
ID#: PIA22085
Added: 2017-11-02

Views: 946

Black Hole With Jet (Artist's Concept)

This artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole -- and a jet of hot gas, called plasma.

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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)

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.

Mission: Spitzer Space Telescope, Wide-field Infrared Survey Explorer (WISE)
ID#: PIA22084
Added: 2017-11-01

Views: 648

Polluted White Dwarf (Artist's Concept)

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.

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NASA's Spitzer Space Telescope has provisionally detected the faint afterglow of the explosive merger of two neutron stars in the galaxy NGC 4993.
NASA's Spitzer Space Telescope has provisionally detected the faint afterglow of the explosive merger of two neutron stars in the galaxy NGC 4993.

Spitzer Observes Neutron Star Collision

NASA's Spitzer Space Telescope has provisionally detected the faint afterglow of the explosive merger of two neutron stars in the galaxy NGC 4993.

Target: NGC 4993
Mission: Spitzer Space Telescope
Instrument: Infrared Array Camera (IRAC)
ID#: PIA21910
Added: 2017-10-16

Views: 1353

Spitzer Observes Neutron Star Collision

NASA's Spitzer Space Telescope has provisionally detected the faint afterglow of the explosive merger of two neutron stars in the galaxy NGC 4993.

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This artist's rendering shows a large exoplanet causing small bodies to collide in a disk of dust.
This artist's rendering shows a large exoplanet causing small bodies to collide in a disk of dust.

Giant Exoplanet and Debris Disk (Artist's Concept)

This artist's rendering shows a large exoplanet causing small bodies to collide in a disk of dust.

ID#: PIA22082
Added: 2017-10-11

Views: 1137

Giant Exoplanet and Debris Disk (Artist's Concept)

This artist's rendering shows a large exoplanet causing small bodies to collide in a disk of dust.

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This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian's Star or Tabby's Star.
This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian's Star or Tabby's Star.

Tabby's Star (Illustration)

This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian's Star or Tabby's Star.

Mission: Spitzer Space Telescope
ID#: PIA22081
Added: 2017-10-04

Views: 2025

Tabby's Star (Illustration)

This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian's Star or Tabby's Star.

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By using NASA's Spitzer Space Telescope, astronomers have found that the varying glow of brown dwarfs over time can be explained by bands of patchy clouds rotating at different speeds, as shown in this artist's concept.
By using NASA's Spitzer Space Telescope, astronomers have found that the varying glow of brown dwarfs over time can be explained by bands of patchy clouds rotating at different speeds, as shown in this artist's concept.

Brown Dwarf Weather (Artist's Concept)

By using NASA's Spitzer Space Telescope, astronomers have found that the varying glow of brown dwarfs over time can be explained by bands of patchy clouds rotating at different speeds, as shown in this artist's concept.

Mission: Spitzer Space Telescope
ID#: PIA21752
Added: 2017-08-17

Views: 2038

Brown Dwarf Weather (Artist's Concept)

By using NASA's Spitzer Space Telescope, astronomers have found that the varying glow of brown dwarfs over time can be explained by bands of patchy clouds rotating at different speeds, as shown in this artist's concept.

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This artist's concept shows what the TRAPPIST-1 planetary system may look like from a vantage point near planet TRAPPIST-1f (at right).
This artist's concept shows what the TRAPPIST-1 planetary system may look like from a vantage point near planet TRAPPIST-1f (at right).

TRAPPIST-1 System - Artist Concept

This artist's concept shows what the TRAPPIST-1 planetary system may look like from a vantage point near planet TRAPPIST-1f (at right).

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21751
Added: 2017-08-11

Views: 2144

TRAPPIST-1 System - Artist Concept

This artist's concept shows what the TRAPPIST-1 planetary system may look like from a vantage point near planet TRAPPIST-1f (at right).

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Artist's concept of Kuiper Belt object 2014 MU69, which is the next flyby target for NASA's New Horizons mission.
Artist's concept of Kuiper Belt object 2014 MU69, which is the next flyby target for NASA's New Horizons mission.

Artist's Concept of 2014 MU69 as a Single Object

Artist's concept of Kuiper Belt object 2014 MU69, which is the next flyby target for NASA's New Horizons mission.

Target: 2014 MU69
Mission: New Horizons
Spacecraft: New Horizons
ID#: PIA21868
Added: 2017-08-03

Views: 975

Artist's Concept of 2014 MU69 as a Single Object

Artist's concept of Kuiper Belt object 2014 MU69, which is the next flyby target for NASA's New Horizons mission.

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This is one artist's concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA's New Horizons mission.
This is one artist's concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA's New Horizons mission.

A Kuiper Belt Pair? Artist's Concept of 2014 MU69 as a Binary Object

This is one artist's concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA's New Horizons mission.

Target: 2014 MU69
Mission: New Horizons
Spacecraft: New Horizons
ID#: PIA21867
Added: 2017-08-03

Views: 470

A Kuiper Belt Pair? Artist's Concept of 2014 MU69 as a Binary Object

This is one artist's concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA's New Horizons mission.

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This illustration shows a red dwarf star orbited by a hypothetical exoplanet. By mining data from NASA's GALEX spacecraft, a team of astronomers identified dozens of flares at a range of durations and strengths.
This illustration shows a red dwarf star orbited by a hypothetical exoplanet. By mining data from NASA's GALEX spacecraft, a team of astronomers identified dozens of flares at a range of durations and strengths.

Flaring Red Dwarf Star (Illustration)

This illustration shows a red dwarf star orbited by a hypothetical exoplanet. By mining data from NASA's GALEX spacecraft, a team of astronomers identified dozens of flares at a range of durations and strengths.

Mission: Galaxy Evolution Explorer (GALEX)
ID#: PIA21473
Added: 2017-06-06

Views: 1766

Flaring Red Dwarf Star (Illustration)

This illustration shows a red dwarf star orbited by a hypothetical exoplanet. By mining data from NASA's GALEX spacecraft, a team of astronomers identified dozens of flares at a range of durations and strengths.

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This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. It is the hottest gas giant planet discovered so far.
This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. It is the hottest gas giant planet discovered so far.

Hottest Hot Jupiter Animation (Artist's Concept)

This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. It is the hottest gas giant planet discovered so far.

Target: KELT-9b
ID#: PIA21472
Added: 2017-06-05

Views: 2681

Hottest Hot Jupiter Animation (Artist's Concept)

This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. It is the hottest gas giant planet discovered so far.

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NASA's Solar Dynamics Observatory observes a solar prominence at the sun's edge putting on quite a display of plasma being pushed and pulled by unstable magnetic fields (May 22-24, 2017).
NASA's Solar Dynamics Observatory observes a solar prominence at the sun's edge putting on quite a display of plasma being pushed and pulled by unstable magnetic fields (May 22-24, 2017).

Hedgerow Prominence

NASA's Solar Dynamics Observatory observes a solar prominence at the sun's edge putting on quite a display of plasma being pushed and pulled by unstable magnetic fields (May 22-24, 2017).

Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21650
Added: 2017-05-30

Views: 1288

Hedgerow Prominence

NASA's Solar Dynamics Observatory observes a solar prominence at the sun's edge putting on quite a display of plasma being pushed and pulled by unstable magnetic fields (May 22-24, 2017).

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This pair of visible-light and near-infrared photos from NASA's Hubble Space Telescope shows the giant star N6946-BH1 before and after it vanished out of sight by imploding to form a black hole.
This pair of visible-light and near-infrared photos from NASA's Hubble Space Telescope shows the giant star N6946-BH1 before and after it vanished out of sight by imploding to form a black hole.

Massive Star Goes Out With a Whimper Instead of a Bang

This pair of visible-light and near-infrared photos from NASA's Hubble Space Telescope shows the giant star N6946-BH1 before and after it vanished out of sight by imploding to form a black hole.

Mission: Hubble Space Telescope
Instrument: Hubble Space Telescope
ID#: PIA21467
Added: 2017-05-25

Views: 3200

Massive Star Goes Out With a Whimper Instead of a Bang

This pair of visible-light and near-infrared photos from NASA's Hubble Space Telescope shows the giant star N6946-BH1 before and after it vanished out of sight by imploding to form a black hole.

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This illustration shows the final stages in the life of a supermassive star that fails to explode as a supernova, but instead implodes to form a black hole.
This illustration shows the final stages in the life of a supermassive star that fails to explode as a supernova, but instead implodes to form a black hole.

Massive Star Goes Out With a Whimper Instead of a Bang (Artist's Concept)

This illustration shows the final stages in the life of a supermassive star that fails to explode as a supernova, but instead implodes to form a black hole.

Mission: Hubble Space Telescope, Spitzer Space Telescope
ID#: PIA21466
Added: 2017-05-25

Views: 2301

Massive Star Goes Out With a Whimper Instead of a Bang (Artist's Concept)

This illustration shows the final stages in the life of a supermassive star that fails to explode as a supernova, but instead implodes to form a black hole.

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This image of the Crab Nebula combines data from five different telescopes. It is know as the expanding gaseous remnant from a star that self-detonated as a supernova, briefly shining as brightly as 400 million suns.
This image of the Crab Nebula combines data from five different telescopes. It is know as the expanding gaseous remnant from a star that self-detonated as a supernova, briefly shining as brightly as 400 million suns.

Crab Nebula from Five Observatories

This image of the Crab Nebula combines data from five different telescopes. It is know as the expanding gaseous remnant from a star that self-detonated as a supernova, briefly shining as brightly as 400 million suns.

Mission: Hubble Space Telescope, XMM-Newton, Chandra X-ray Observatory, Spitzer Space Telescope
Instrument: Very Large Array (VLA)
ID#: PIA21474
Added: 2017-05-10

Views: 4562

Crab Nebula from Five Observatories

This image of the Crab Nebula combines data from five different telescopes. It is know as the expanding gaseous remnant from a star that self-detonated as a supernova, briefly shining as brightly as 400 million suns.

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This artist's concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B.
This artist's concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B.

Water World Artist Concept

This artist's concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B.

Mission: Kepler
ID#: PIA21470
Added: 2017-04-12

Views: 1953

Water World Artist Concept

This artist's concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B.

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In preparation for NASA's New Horizons flyby of 2014 MU69 on Jan. 1, 2019, the spacecraft's LORRI took a series of 10-second exposures of the background star field near the location of its target Kuiper Belt object (KBO).
In preparation for NASA's New Horizons flyby of 2014 MU69 on Jan. 1, 2019, the spacecraft's LORRI took a series of 10-second exposures of the background star field near the location of its target Kuiper Belt object (KBO).

A KBO among the Stars

In preparation for NASA's New Horizons flyby of 2014 MU69 on Jan. 1, 2019, the spacecraft's LORRI took a series of 10-second exposures of the background star field near the location of its target Kuiper Belt object (KBO).

Target: Pluto
Mission: New Horizons
Spacecraft: New Horizons
Instrument: Long Range Reconnaissance Imager (LORRI)
ID#: PIA21588
Added: 2017-04-03

Views: 857

A KBO among the Stars

In preparation for NASA's New Horizons flyby of 2014 MU69 on Jan. 1, 2019, the spacecraft's LORRI took a series of 10-second exposures of the background star field near the location of its target Kuiper Belt object (KBO).

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NASA's NuSTAR has identified a candidate pulsar in Andromeda, the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population.
NASA's NuSTAR has identified a candidate pulsar in Andromeda, the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population.

Pulsar Candidate in Andromeda

NASA's NuSTAR has identified a candidate pulsar in Andromeda, the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population.

Mission: Galaxy Evolution Explorer (GALEX), NuSTAR
Instrument: GALEX Telescope, Nuclear Spectroscopic Telescope Array
ID#: PIA20970
Added: 2017-03-23

Views: 2699

Pulsar Candidate in Andromeda

NASA's NuSTAR has identified a candidate pulsar in Andromeda, the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population.

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The sun has been virtually spotless, as in no sunspots, over the past 11 days, a spotless stretch that we have not seen since the last solar minimum many years ago. From NASA's SDO Mar. 14-17, 2017.
The sun has been virtually spotless, as in no sunspots, over the past 11 days, a spotless stretch that we have not seen since the last solar minimum many years ago. From NASA's SDO Mar. 14-17, 2017.

Spotless Sun

The sun has been virtually spotless, as in no sunspots, over the past 11 days, a spotless stretch that we have not seen since the last solar minimum many years ago. From NASA's SDO Mar. 14-17, 2017.

Mission: Solar Dynamics Observatory (SDO)
Instrument: Atmosphere Imaging Assembly (AIA)
ID#: PIA21569
Added: 2017-03-22

Views: 777

Spotless Sun

The sun has been virtually spotless, as in no sunspots, over the past 11 days, a spotless stretch that we have not seen since the last solar minimum many years ago. From NASA's SDO Mar. 14-17, 2017.

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This frame from a video depicts artist's concepts of each of the seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star. Over 21 days.
This frame from a video depicts artist's concepts of each of the seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star. Over 21 days.

TRAPPIST-1 Planets - Flyaround Animation

This frame from a video depicts artist's concepts of each of the seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star. Over 21 days.

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21468
Added: 2017-02-22

Views: 4616

TRAPPIST-1 Planets - Flyaround Animation

This frame from a video depicts artist's concepts of each of the seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star. Over 21 days.

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This illustration shows the seven TRAPPIST-1 planets as they might look as viewed from Earth using a fictional, incredibly powerful telescope. The sizes and relative positions are correctly to scale.
This illustration shows the seven TRAPPIST-1 planets as they might look as viewed from Earth using a fictional, incredibly powerful telescope. The sizes and relative positions are correctly to scale.

Transit Illustration of TRAPPIST-1

This illustration shows the seven TRAPPIST-1 planets as they might look as viewed from Earth using a fictional, incredibly powerful telescope. The sizes and relative positions are correctly to scale.

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21429
Added: 2017-02-22

Views: 4911

Transit Illustration of TRAPPIST-1

This illustration shows the seven TRAPPIST-1 planets as they might look as viewed from Earth using a fictional, incredibly powerful telescope. The sizes and relative positions are correctly to scale.

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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

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.

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21428
Added: 2017-02-22

Views: 277917

TRAPPIST-1 Comparison to Solar System and Jovian Moons

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.

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This frame from a video details a system of seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star.
This frame from a video details a system of seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star.

TRAPPIST-1 Planetary Orbits and Transits

This frame from a video details a system of seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star.

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21427
Added: 2017-02-22

Views: 2937

TRAPPIST-1 Planetary Orbits and Transits

This frame from a video details a system of seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star.

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The first observations of the TRAPPIST-1 system reported in 2016 revealed three planets orbiting a small, red-dwarf star, though the exact location of the outermost one, was not well-determined (yellow band, top image).
The first observations of the TRAPPIST-1 system reported in 2016 revealed three planets orbiting a small, red-dwarf star, though the exact location of the outermost one, was not well-determined (yellow band, top image).

The Discovery of TRAPPIST-1 Planets

The first observations of the TRAPPIST-1 system reported in 2016 revealed three planets orbiting a small, red-dwarf star, though the exact location of the outermost one, was not well-determined (yellow band, top image).

Mission: Spitzer Space Telescope
Instrument: TRAPPIST
ID#: PIA21426
Added: 2017-02-22

Views: 1423

The Discovery of TRAPPIST-1 Planets

The first observations of the TRAPPIST-1 system reported in 2016 revealed three planets orbiting a small, red-dwarf star, though the exact location of the outermost one, was not well-determined (yellow band, top image).

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