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List		 Addition DateSort Ascending Target Mission Instrument Size
Add Image to Favorite List 2014-12-11 Chandra X-ray Observatory
Hubble Space Telescope
Spitzer Space Telescope
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This composite image of NGC 2207 and IC 2163 contains Chandra data in pink, optical-light data from NASA's Hubble Space Telescope in red, green, and blue (appearing as blue, white, orange, and brown), and infrared data from Spitzer Space Telescope in red.
PIA18903:
Galactic Gathering Gives Impressive Light Display
Full Resolution:     TIFF (18.82 MB)     JPEG (698.6 kB)
Add Image to Favorite List 2014-12-05 Spitzer Space Telescope
 Canada France Hawaii Telescope
IRAC
Very Large Array (VLA)
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A new feature in the evolution of galaxies has been captured in this image of galactic interactions. The two galaxies seen here -- NGC 3226 at the top, NGC 3227 at the bottom.
PIA18902:
A Flood of Gas
Full Resolution:     TIFF (14.47 MB)     JPEG (2.111 MB)
Add Image to Favorite List 2014-12-02 W. M. Keck Observatory
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A dusty planetary system (left) is compared to another system with little dust in this artist's concept. Dust can make it difficult for telescopes to image planets because light from the dust can outshine that of the planets.
PIA18901:
Seeking Planets in the Dust (Artist Concept)
Full Resolution:     TIFF (17.29 MB)     JPEG (343.2 kB)
Add Image to Favorite List 2014-11-10 Spitzer Space Telescope
 Spitzer Space Telescope
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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.
PIA18900:
Sibling Star Systems? Dust Structures Suggest So
Full Resolution:     TIFF (39.62 MB)     JPEG (590.8 kB)
Add Image to Favorite List 2014-11-06 CIBER
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This plot shows data from the Cosmic Infrared Background Experiment, or CIBER, rockets launched in 2010 and 2012. The experiment measures a diffuse glow of infrared light in the sky, known as the cosmic infrared background.
PIA18855:
Background Light 'Bluer' Than Expected
Full Resolution:     TIFF (12.29 MB)     JPEG (202 kB)
Add Image to Favorite List 2014-11-06 CIBER
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This graphic illustrates how the Cosmic Infrared Background Experiment, or CIBER, team measures a diffuse glow of infrared light filling the spaces between galaxies. The glow does not come from any known stars and galaxies.
PIA18854:
Masking Out Galaxies
Full Resolution:     TIFF (12 MB)     JPEG (634.3 kB)
Add Image to Favorite List 2014-11-06 CIBER
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This artist's concept shows a view of a number of galaxies sitting in huge halos of stars. The stars are too distant to be seen individually and instead are seen as a diffuse glow, colored yellow in this illustration.
PIA18852:
Stray Stars Scattered in Space (Artist Concept)
Full Resolution:     TIFF (11.06 MB)     JPEG (100.2 kB)
Add Image to Favorite List 2014-11-06 CIBER
Hubble Space Telescope
Spitzer Space Telescope
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Our sky is filled with a diffuse background glow, known as the cosmic infrared background. Much of the light is from galaxies we know about, but previous Spitzer measurements have shown an extra component of unknown origin.
PIA18851:
First Stars or Stray Stars? A Cosmic Infrared Mystery
Full Resolution:     TIFF (24.01 MB)     JPEG (840.9 kB)
Add Image to Favorite List 2014-11-06 CIBER
 CIBER
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These images from the Cosmic Infrared Background Experiment, or CIBER, show large patches of the sky at two different infrared wavelengths (1.1 microns and 1.6 microns) after all known galaxies have been subtracted out and the images smoothed.
PIA18849:
Matching Patterns of Light
Full Resolution:     TIFF (8.96 MB)     JPEG (146.3 kB)
Add Image to Favorite List 2014-10-22 Chandra X-ray Observatory
Wide-field Infrared Survey Explorer (WISE)
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In this image of PSR B1509-58 (about 170,000 light-years from Earth), X-rays from NASA's Chandra in gold are seen along with infrared data from NASA's Wide-field Infrared Survey Explorer (WISE) telescope in red, green and blue.
PIA18848:
Face Illusion in the Cosmic Clouds
Full Resolution:     TIFF (38.89 MB)     JPEG (573.6 kB)
Add Image to Favorite List 2014-10-22 Spitzer Space Telescope
 IRAC
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This image from NASA's Spitzer Space Telescope shows where the action is taking place in galaxy NGC 1291. The outer ring, colored red, is filled with new stars that are igniting and heating up dust that glows with infrared light.
PIA18847:
Ring of Stellar Fire
Full Resolution:     TIFF (4.236 MB)     JPEG (173.1 kB)
Add Image to Favorite List 2014-10-15 Herschel Space Observatory
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A small galaxy, called Sextans A, is shown here in a multi-wavelength mosaic captured by the ESA's Herschel mission. In this image, the purple shows gas; blue shows young stars and the orange and yellow dots are newly formed stars heating up dust.
PIA18846:
Sluggish Galaxy Grows Stars Slowly
Full Resolution:     TIFF (7.304 MB)     JPEG (90.61 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
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This image shows a neutron star -- the core of a star that exploded in a massive supernova. This particular neutron star is known as a pulsar because it sends out rotating beams of X-rays that sweep past Earth like lighthouse beacons.
PIA18845:
Beacons of X-ray Light (Animation) Animation Icon
Full Resolution:     TIFF (15.2 MB)     JPEG (147.8 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
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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.
PIA18844:
Ultraluminous X-ray Sources in M82 Galaxy
Full Resolution:     TIFF (4.322 MB)     JPEG (60.5 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
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The brightest pulsar detected to date is shown in this frame from an animation that flips back and forth between images captured by NASA's NuSTAR. A pulsar is a type of neutron star, the leftover core of a star that exploded in a supernova.
PIA18843:
NuSTAR Captures the Beat of a Dead Star (Animation) Animation Icon
Full Resolution:     TIFF (362.1 kB)     JPEG (7.725 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
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This chart illustrates relative masses of super-dense cosmic objects, ranging from white dwarfs to supermassive black holes encased in the cores of most galaxies. The first three 'dead' stars (left) all form when stars more massive than our sun explode.
PIA18842:
Mass Chart for Dead Stars and Black Holes
Full Resolution:     TIFF (27.01 MB)     JPEG (345.1 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
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The bulk of a galaxy called Messier 82 (M82), or the 'Cigar galaxy,' is seen in visible-light data captured by the National Optical Astronomy Observatory's 2.1-meter telescope at Kitt Peak in Arizona.
PIA18841:
NuSTAR Finds a Pulse in Cigar Galaxy
Full Resolution:     TIFF (9.123 MB)     JPEG (97.7 kB)
Add Image to Favorite List 2014-10-08 NuSTAR
 Chandra X-ray Telescope
Hubble Space Telescope
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The comparison from NASA's Hubble telescope and Chandra X-ray Observatory highlights how different the universe can look when viewed in other wavelengths of light. M82 is located 12 million light-years away in the Ursa Major constellation.
PIA18840:
Galaxy in Different Lights
Full Resolution:     TIFF (2.431 MB)     JPEG (58.14 kB)
Add Image to Favorite List 2014-09-24 Hubble Space Telescope
Kepler
Spitzer Space Telescope
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A plot of the transmission spectrum for exoplanet HAT-P-11b, with data from NASA's Kepler, Hubble and Spitzer observatories combined. The results show a robust detection of water absorption in the Hubble data.
PIA18839:
Transmission Spectrum of HAT-P-11b
Full Resolution:     TIFF (6.391 MB)     JPEG (139.1 kB)
Add Image to Favorite List 2014-09-24 Hubble Space Telescope
Kepler
Spitzer Space Telescope
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Scientists were excited to discover clear skies on a relatively small planet, about the size of Neptune, using the combined power of NASA's Hubble, Spitzer and Kepler space telescopes.
PIA18838:
A Sunny Outlook for 'Weather' on Exoplanets (Artist's Concept)
Full Resolution:     TIFF (30.26 MB)     JPEG (473.5 kB)
Add Image to Favorite List 2014-09-24 Hubble Space Telescope
Spitzer Space Telescope
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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.
PIA18837:
Seeing Starlight Through a Planet's Rim (Artist's Concept)
Full Resolution:     TIFF (28.72 MB)     JPEG (324.8 kB)
Add Image to Favorite List 2014-09-19 Hubble Space Telescope
 WFPC2
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This picture, taken by the NASA/ESA Hubble Space Telescope's WFPC2, shows a galaxy known as NGC 6872 in the constellation of Pavo (The Peacock). Its unusual shape is caused by its interactions with the smaller galaxy that can be seen just above NGC 6872.
PIA17808:
Hubble Feathers the Peacock
Full Resolution:     TIFF (2.635 MB)     JPEG (101.2 kB)
Add Image to Favorite List 2014-09-16 Chandra X-ray Observatory
NuSTAR
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The blue dot in this image marks the spot of an energetic pulsar -- the magnetic, spinning core of star that blew up in a supernova explosion. NASA's NuSTAR discovered the pulsar by identifying its telltale pulse.
PIA18836:
Powerful, Pulsating Core of Star
Full Resolution:     TIFF (5.882 MB)     JPEG (319 kB)
Add Image to Favorite List 2014-09-09 Spitzer Space Telescope
Subaru Telescope
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Millions of galaxies populate the patch of sky known as the COSMOS field, short for Cosmic Evolution Survey, a portion of which is shown here. Even the smallest dots in this image are galaxies, some up to 12 billion light-years away.
PIA18472:
Take a Splash Into the Cosmos
Full Resolution:     TIFF (50.35 MB)     JPEG (2.502 MB)
Add Image to Favorite List 2014-08-28 Spitzer Space Telescope
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Astronomers were surprised to see these data from NASA's Spitzer Space Telescope in January 2013, showing a huge eruption of dust around a star called NGC 2547-ID8.
PIA18470:
Witnessing a Planetary Wreckage
Full Resolution:     TIFF (24.38 MB)     JPEG (260.9 kB)
Add Image to Favorite List 2014-08-28 Spitzer Space Telescope
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This artist's concept shows the immediate aftermath of a large asteroid impact around NGC 2547-ID8, a 35-million-year-old sun-like star thought to be forming rocky planets.
PIA18469:
Building Planets Through Collisions (Artist's Concept)
Full Resolution:     TIFF (27.08 MB)     JPEG (415.7 kB)
Add Image to Favorite List 2014-08-27 Hubble Space Telescope
Spitzer Space Telescope
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Artist's impression of a firestorm of star birth deep inside core of young, growing elliptical galaxy.
PIA18471:
A Cauldron of Star Birth in the Center of a Young Galaxy (Artist's Concept)
Full Resolution:     TIFF (18.01 MB)     JPEG (1.482 MB)
Add Image to Favorite List 2014-08-21 Chandra X-ray Observatory
Spitzer Space Telescope
XMM-Newton
 MIPS
XMM-Newton X-ray
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Puppis A, around 7,000 light-years away, is seen in this image from NASA's Spitzer Space Telescope and Chandra X-Ray Observatory, and the European Space Agency's XMM-Newton.
PIA18468:
Supernova Seen In Two Lights
Full Resolution:     TIFF (9.794 MB)     JPEG (189.6 kB)
Add Image to Favorite List 2014-08-12 NuSTAR
 NuSTAR
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This data plot captured by NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, shows X-ray light streaming from regions near a supermassive black hole known as Markarian 335.
PIA18467:
Big, Spinning Black Hole Blurs Light
Full Resolution:     TIFF (25.26 MB)     JPEG (349.5 kB)
Add Image to Favorite List 2014-08-07 NEOWISE
 NEOWISE Telescope
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NASA's NEOWISE mission detected comet C/2013 A1 Siding Spring on July 28, 2014, less than three months before this comet's close flyby of Mars on Oct. 19.
PIA18593:
NEOWISE Spies Comet C/2013 A1 Siding Spring a Second Time
Full Resolution:     TIFF (19.04 MB)     JPEG (483.9 kB)
Add Image to Favorite List 2014-07-23 NEOWISE
 NEOWISE Telescope
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NASA's NEOWISE spotted Comet C/2013 UQ4 (Catalina), appearing to be a highly active comet one day past perihelion on July 7, 2014.
PIA18653:
NEOWISE Spies Activity on Comet Catalina
Full Resolution:     TIFF (5.173 MB)     JPEG (315 kB)
Add Image to Favorite List 2014-07-23 NEOWISE
 NEOWISE Telescope
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Comet C/2013 UQ4 (Catalina) first looked like an asteroid when NASA's NEOWISE team first observed it on December 31, 2013. These exposures were taken that day, when the comet was at a distance of about 2.9 AU from the sun.
PIA18652:
NEOWISE Spots Comet Catalina
Full Resolution:     TIFF (1.278 MB)     JPEG (113.2 kB)
Add Image to Favorite List 2014-07-02 Chandra X-ray Observatory
Spitzer Space Telescope
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A composite image of the spiral galaxy NGC 4258 showing X-ray emission observed with NASA's Chandra X-ray Observatory (blue) and infrared emission observed with NASA's Spitzer Space Telescope (red and green).
PIA18462:
Black Hole Jets Make Shock Waves
Full Resolution:     TIFF (3.55 MB)     JPEG (31.11 kB)
Add Image to Favorite List 2014-07-02 Chandra X-ray Observatory
Hubble Space Telescope
Spitzer Space Telescope
Very Large Array (VLA)
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Anomalous arms are seen in this composite image of NGC 4258 from NASA's Chandra X-ray Observator, NSF's Karl Jansky Very Large Array, NASA's Hubble Space Telescope and Spitzer Space Telescope.
PIA18461:
Galactic Pyrotechnics on Display
Full Resolution:     TIFF (30.38 MB)     JPEG (1.396 MB)
Add Image to Favorite List 2014-06-12 NGC 7538 Herschel Space Observatory
 PACS
SPIRE
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The Herschel Space Observatory has uncovered a weird ring of dusty material while obtaining one of the sharpest scans to date of a huge cloud of gas and dust, called NGC 7538.
PIA18452:
A Puzzling Cosmic Ring
Full Resolution:     TIFF (10.65 MB)     JPEG (170.6 kB)
Add Image to Favorite List 2014-06-04 Spitzer Space Telescope
 IRAC
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This infrared image from NASA's Spitzer Space Telescope shows N103B -- all that remains from a supernova that exploded a millennium ago in the Large Magellanic Cloud, a satellite galaxy 160,000 light-years away from our own Milky Way.
PIA18009:
Dissecting Dust from Detonation of Dead Star
Full Resolution:     TIFF (3.359 MB)     JPEG (103.6 kB)
Add Image to Favorite List 2014-05-28 Spitzer Space Telescope
 IRAC
Two Micron All Sky Survey (2MASS)
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Studied by astronomers, Serpens Cloud Core is one of the youngest collections of stars ever seen in our galaxy. This infrared image combines data from NASA's Spitzer with shorter-wavelength observations from the Two Micron All Sky Survey.
PIA18014:
The 'Serpent' Star-Forming Cloud Spawns Stars
Full Resolution:     TIFF (9.972 MB)     JPEG (628.5 kB)
Add Image to Favorite List 2014-05-22 Wide-field Infrared Survey Explorer (WISE)
 WISE Telescope
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This artistically enhanced image from NASA's WISE data shows galaxies clumped together in the Fornax cluster, located 60 million light-years from Earth.
PIA18012:
The Clumping Behavior of Galaxies
Full Resolution:     TIFF (20.28 MB)     JPEG (1.191 MB)
Add Image to Favorite List 2014-05-21 Spitzer Space Telescope
 IRAC
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Astronomers have found cosmic clumps so dark, dense and dusty that they throw the deepest shadows ever recorded. A large cloud looms in the center of this image of the galactic plane from NASA's Spitzer Space Telescope.
PIA18010:
Mapping the Densest Dusty Cloud Cores
Full Resolution:     TIFF (18.76 MB)     JPEG (1.225 MB)
Add Image to Favorite List 2014-05-07 Chandra X-ray Observatory
Spitzer Space Telescope
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This composite image shows one of the clusters, NGC 2024, which is found in the center of the so-called Flame Nebula about 1,400 light years from Earth. Astronomers have studied two star clusters using NASA's Chandra and infrared telescopes.
PIA18249:
Inside the Flame Nebula
Full Resolution:     TIFF (38.89 MB)     JPEG (874.9 kB)
Add Image to Favorite List 2014-05-06 Planck
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The magnetic field of our Milky Way galaxy as seen by ESA's Planck satellite. This image was compiled from the first all-sky observations of polarized light emitted by interstellar dust in the Milky Way.
PIA18048:
Magnetic Map of Milky Way
Full Resolution:     TIFF (4.648 MB)     JPEG (127.3 kB)
Add Image to Favorite List 2014-05-01 Ganymede 3300x2550x3
This artist's concept of Jupiter's moon Ganymede, the largest moon in the solar system, illustrates the 'club sandwich' model of its interior oceans. Scientists suspect Ganymede has a massive ocean under an icy crust.
PIA18005:
Possible "Moonwich" of Ice and Oceans on Ganymede (Artist's Concept)
Full Resolution:     TIFF (25.26 MB)     JPEG (514.5 kB)
Add Image to Favorite List 2014-04-29 Herschel Space Observatory
Hubble Space Telescope
 HIFI
WFC3
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The young galaxy SDSS090122.37+181432.3, also known as S0901, is seen here by the Herschel Space Observatory and the Hubble Space Telescope as the bright arc to the left of the central bright galaxy.
PIA18004:
Smeared and Magnified Galaxy
Full Resolution:     TIFF (2.137 MB)     JPEG (93.48 kB)
Add Image to Favorite List 2014-04-25 Spitzer Space Telescope
Wide-field Infrared Survey Explorer (WISE)
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This diagram illustrates the locations of the star systems closest to the sun. The year when the distance to each system was determined is listed after the system's name.
PIA18003:
Welcome to the Sun's Neighborhood
Full Resolution:     TIFF (3.241 MB)     JPEG (67.8 kB)
Add Image to Favorite List 2014-04-25 Spitzer Space Telescope
Wide-field Infrared Survey Explorer (WISE)
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This frame from an animation shows the coldest brown dwarf yet seen, and the fourth closest system to our sun. Called WISE J085510.83-071442.5, this dim object was discovered through its rapid motion across the sky.
PIA18002:
Cold and Quick: a Fast-Moving Brown Dwarf Animation Icon
Full Resolution:     TIFF (1.94 MB)     JPEG (28.72 kB)
Add Image to Favorite List 2014-04-25 Wide-field Infrared Survey Explorer (WISE)
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This artist's conception shows the object named WISE J085510.83-071442.5, the coldest known brown dwarf. Brown dwarfs are dim star-like bodies that lack the mass to burn nuclear fuel as stars do.
PIA18001:
Cold and Close Celestial Orb (Artist's Concept)
Full Resolution:     TIFF (15.2 MB)     JPEG (215.4 kB)
Add Image to Favorite List 2014-04-17 Kepler
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This diagram compares the planets of our inner solar system to Kepler-186, a five-planet star system about 500 light-years from Earth in the constellation Cygnus.
PIA18000:
Kepler-186 and the Solar System
Full Resolution:     TIFF (34.71 MB)     JPEG (564.3 kB)
Add Image to Favorite List 2014-04-17 Kepler
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This artist's concept depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone, a range of distance from a star where liquid water might pool on the planet's surface.
PIA17999:
Kepler-186f, the First Earth-size Planet in the Habitable Zone (Artist's Concept)
Full Resolution:     TIFF (34.71 MB)     JPEG (691.4 kB)
Add Image to Favorite List 2014-04-14 Hubble Space Telescope
 Hubble Space Telescope
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Known as IRAS 20324+4057 ('The Tadpole'), taken by NASA's Hubble Space Telescope in 2012, shows a bright blue tadpole as it appears to swim through the inky blackness of space.
PIA18168:
The Tadpole and the Wriggler
Full Resolution:     TIFF (3.165 MB)     JPEG (102.6 kB)
Add Image to Favorite List 2014-04-10 Exoplanet 4200x2363x3
Researchers have detected the first 'exomoon' candidate -- a moon orbiting a planet that lies outside our solar system. Using a technique called 'microlensing,' they observed what could be either a moon and a planet -- or a planet and a star.
PIA17998:
Moon or Planet? The 'Exomoon Hunt' Continues (Artist's Concept)
Full Resolution:     TIFF (29.79 MB)     JPEG (934.1 kB)
Add Image to Favorite List 2014-04-02 Helix Nebula Hubble Space Telescope
 Hubble Space Telescope
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This image of the Helix Nebula from NASA's Hubble Space Telescope shows a fine web of filamentary 'bicycle-spoke' features embedded in the colorful red and blue gas ring, which is one of the nearest planetary nebulae to Earth.
PIA18164:
Iridescent Glory of Nearby Helix Nebula
Full Resolution:     TIFF (768.1 MB)     JPEG (27.72 MB)
Add Image to Favorite List 2014-03-26 Spitzer Space Telescope
 Spitzer Space Telescope
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The galaxy NGC 4395 is shown here in infrared light, captured by NASA's Spitzer Space Telescope. This dwarf galaxy is relatively small in comparison with our Milky Way galaxy, which is nearly 1,000 times more massive.
PIA17997:
Bulgeless Galaxy Hides Black Hole
Full Resolution:     TIFF (2.473 MB)     JPEG (70.62 kB)
Add Image to Favorite List 2014-03-20 Spitzer Space Telescope
 IRAC
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This mosaic reveals a panorama of the Milky Way from NASA's Spitzer Space Telescope. This picture covers only about three percent of the sky, but includes more than half of the galaxy's stars and the majority of its star formation activity.
PIA17996:
GLIMPSE the Galaxy All the Way Around
Full Resolution:     TIFF (375.9 MB)     JPEG (9.296 MB)
Add Image to Favorite List 2014-03-07 Wide-field Infrared Survey Explorer (WISE)
 Gemini Observatory
WISE Telescope
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The third closest star system to the sun, called WISE J104915.57-531906, center of large image, which was taken by NASA's WISE. It appeared to be a single object, but a sharper image from Gemini Observatory, revealed that it was binary star system.
PIA17992:
Brown Dwarfs in our 'Backyard'
Full Resolution:     TIFF (14.99 MB)     JPEG (190.2 kB)
Add Image to Favorite List 2014-03-07 Wide-field Infrared Survey Explorer (WISE)
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A nearby star, called WISEA J204027.30+695924, stands out in red in this image from the Second Generation Digitized Sky Survey.
PIA17991:
A New Solar Neighbor
Full Resolution:     TIFF (4.329 MB)     JPEG (136 kB)
Add Image to Favorite List 2014-03-06 Spitzer Space Telescope
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Magnetic loops carrying gas and dust above disks of planet-forming material circling stars are shown in this artist's conception, which NASA's Spitzer Space Telescope detects as infrared light.
PIA17849:
Loops of Gas and Dust Rise from Planetary Disks (Artist Concept)
Full Resolution:     TIFF (24.89 MB)     JPEG (461.2 kB)
Add Image to Favorite List 2014-02-27 Kepler
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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.
PIA17848:
Star System Bonanza (Illustration)
Full Resolution:     TIFF (3.097 MB)     JPEG (156.3 kB)
Add Image to Favorite List 2014-02-26 Spitzer Space Telescope
 IRAC
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The closest supernova of its kind to be observed in the last few decades, M82 or the 'Cigar galaxy,' has sparked a global observing campaign involving legions of instruments on the ground and in space, including NASA's Spitzer Space Telescope.
PIA17847:
Seeing Through a Veil of Dust
Full Resolution:     TIFF (28.09 MB)     JPEG (442.5 kB)
Add Image to Favorite List 2014-02-20 Spitzer Space Telescope
 IRAC
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The red arc in this infrared image from NASA's Spitzer Space Telescope is a giant shock wave, created by a speeding star known as Kappa Cassiopeiae.
PIA17843:
Speedster Star Shocks the Galaxy
Full Resolution:     TIFF (13.94 MB)     JPEG (512.3 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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The images at the top of this graphic represent two popular models describing how stars blast apart. The models point to different triggers of the explosion. Jet-driven models are illustrated with an artist's concept shown at left.
PIA17846:
NuSTAR Data Point to Sloshing Supernovas
Full Resolution:     TIFF (21.61 MB)     JPEG (378 kB)
Add Image to Favorite List 2014-02-19 NuSTAR
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NuSTAR has provided the first observational evidence in support of a theory that says exploding stars slosh around before detonating. That theory, referred to as mild asymmetries, is shown here in a simulation by Christian Ott.
PIA17845:
Sloshing Star Goes Supernova Animation Icon
Full Resolution:     TIFF (763.5 kB)     JPEG (9.537 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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A massive star (left), which has created elements as heavy as iron in its interior, blows up in a tremendous explosion (middle), scattering its outer layers in a structure called a supernova remnant (right).
PIA17844:
Evolution of a Supernova
Full Resolution:     TIFF (18.01 MB)     JPEG (344.8 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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When astronomers first looked at images of a supernova remnant called Cassiopeia A, captured by NASA's NuSTAR. The mystery of Cassiopeia A (Cas A), a massive star that exploded in a supernova more than 11,000 years ago continues to confound scientists.
PIA17842:
The Case of Missing Iron in Cassiopeia A
Full Resolution:     TIFF (6.294 MB)     JPEG (87.83 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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NASA's NuSTAR has, for the first time, imaged the radioactive 'guts' of a supernova remnant, the leftover remains of a star that exploded. The NuSTAR data are blue, and show high-energy X-rays.
PIA17841:
Radioactive Core of a Dead Star
Full Resolution:     TIFF (3.147 MB)     JPEG (62.44 kB)
Add Image to Favorite List 2014-02-19 NuSTAR
 NuSTAR
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This diagram illustrates why NASA's NuSTAR can see radioactivity in the remains of exploded stars for the first time. The observatory detects high-energy X-ray photons that are released by a radioactive substance called titanium-44.
PIA17840:
The Creation of Titanium in Stars
Full Resolution:     TIFF (27.01 MB)     JPEG (330.3 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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NASA's NuSTAR is complementing previous observations of the Cassiopeia A supernova remnant (red and green) by providing the first maps of radioactive material forged in the fiery explosion (blue).
PIA17839:
Adding a New "Color" to Palate of Cassiopeia A Images
Full Resolution:     TIFF (9.442 MB)     JPEG (157.2 kB)
Add Image to Favorite List 2014-02-19 Chandra X-ray Observatory
NuSTAR
 Chandra X-ray Telescope
NuSTAR
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This is the first map of radioactivity in a supernova remnant, the blown-out bits and pieces of a massive star that exploded. The blue color shows radioactive material mapped in high-energy X-rays using NASA's NuSTAR.
PIA17838:
Untangling the Remains of Cassiopeia A
Full Resolution:     TIFF (27.01 MB)     JPEG (350.8 kB)
Add Image to Favorite List 2014-02-11 Sol (our sun) SDO
 Atmosphere Imaging Assembly
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The dark region seen on the face of the sun at the end of March 2013 is a coronal hole (just above and to the right of the middle of the picture), which is a source of fast solar wind leaving the sun in this image from NASA's Solar Dynamic Observatory.
PIA17669:
Pulses from the Sun
Full Resolution:     TIFF (3.147 MB)     JPEG (71.34 kB)
Add Image to Favorite List 2014-02-07 Hubble Space Telescope
Spitzer Space Telescope
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This image of the galaxy cluster Abell 2744 was obtained with NASA's Hubble Space Telescope. The zoomed image shows the region around the galaxy Abell2744_Y1, one of the most distant galaxy candidates known.
PIA17837:
Pushing the Limits of the Observable Universe
Full Resolution:     TIFF (7.831 MB)     JPEG (227.1 kB)
Add Image to Favorite List 2014-02-04 Kepler
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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.
PIA17836:
Wobbly Planet Orbital Schematic (Illustration)
Full Resolution:     TIFF (21.61 MB)     JPEG (345.3 kB)
Add Image to Favorite List 2014-01-30 Hubble Space Telescope
 WFPC2
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This image from NASA's Hubble Space Telescope shows Herbig-Haro 30, the prototype of a gas-rich 'young stellar object' disk around a star.
PIA17835:
Dark Disks Around Young Stars
Full Resolution:     TIFF (3.031 MB)     JPEG (56.86 kB)
Add Image to Favorite List 2014-01-29 Wide-field Infrared Survey Explorer (WISE)
 WISE Telescope
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Radiation and winds from massive stars have blown a cavity into the surrounding dust and gas, creating the Trifid nebula, as seen here in infrared light by NASA's Wide-field Infrared Survey Explorer, or WISE.
PIA17834:
Storm of Stars in the Trifid Nebula
Full Resolution:     TIFF (50.32 MB)     JPEG (2.289 MB)
Add Image to Favorite List 2014-01-28 NEOWISE
 NEOWISE Telescope
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NASA's NEOWISE mission captured images of Comet C/2013 A1 Siding Spring. The infrared pictures reveal a comet that is active and very dusty.
PIA17833:
NEOWISE Spies Comet C/2013 A1 Siding Spring
Full Resolution:     TIFF (610.3 kB)     JPEG (65.2 kB)
Add Image to Favorite List 2014-01-09 NuSTAR
 NuSTAR
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A range of supermassive black holes lights up this new image from NASA's NuSTAR. All of the dots are active black holes tucked inside the hearts of galaxies, with colors representing different energies of X-ray light.
PIA17567:
Different Flavors of Black Holes
Full Resolution:     TIFF (27.73 MB)     JPEG (545.3 kB)
Add Image to Favorite List 2014-01-09 NuSTAR
 NuSTAR
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Nicknamed the 'Hand of God,' this object is called a pulsar wind nebula, imaged by NASA's NuSTAR. It's powered by the leftover, dense core of a star that blew up in a supernova explosion.
PIA17566:
High-Energy X-ray View of 'Hand of God'
Full Resolution:     TIFF (18.76 MB)     JPEG (172.9 kB)
Add Image to Favorite List 2014-01-07 Hubble Space Telescope
 Hubble Space Telescope
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This long-exposure image from NASA's Hubble Space Telescope of massive galaxy cluster Abell 2744 is the deepest ever made of any cluster of galaxies. Shown in the foreground is Abell 2744, located in the constellation Sculptor.
PIA17569:
Hubble Frontier Field Abell 2744
Full Resolution:     TIFF (4.41 MB)     JPEG (105.4 kB)
Add Image to Favorite List 2014-01-07 Hubble Space Telescope
 Hubble Space Telescope
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The view is a composite of images taken in visible and near-infrared light by NASA's Hubble Space Telescope. Researchers have circled four unusually red objects that appear as they existed just 500 million years after the big bang.
PIA17568:
Distant Galaxies in Goods North
Full Resolution:     TIFF (3.776 MB)     JPEG (240.3 kB)
Add Image to Favorite List 2014-01-06 Spitzer Space Telescope
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Observations from NASA's Spitzer Space Telescope suggest that most brown dwarfs are roiling with one or more planet-size storms such as seen in this artist's concept.
PIA21475:
Brown Dwarf Weather (Artist's Concept)
Full Resolution:     TIFF (1.615 MB)     JPEG (52.96 kB)
Add Image to Favorite List 2013-12-19 NEOWISE
 NEOWISE Telescope
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This is one of the first images captured by the revived NEOWISE mission, after more than two years of hibernation. It shows a patch of sky in the constellation Canes Venatici, or the Hunting Dogs.
PIA17810:
NEOWISE Opens its Eyes
Full Resolution:     TIFF (12.39 MB)     JPEG (388 kB)
Add Image to Favorite List 2013-12-18 Spitzer Space Telescope
 IRAC
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The collection of red dots seen here show one of several very distant galaxy clusters discovered by combining ground-based optical data from the NOAO's Kitt Peak National Observatory with infrared data from NASA's Spitzer Space Telescope.
PIA17565:
Galactic Metropolis
Full Resolution:     TIFF (12 MB)     JPEG (435.8 kB)
Add Image to Favorite List 2013-12-12 Wide-field Infrared Survey Explorer (WISE)
 WISE Telescope
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A dying star, called the Helix nebula, is shown surrounded by the tracks of asteroids in an image captured by NASA's WISE. Skirting around the edges of the Helix nebula are the footprints of asteroids marching across the field of view.
PIA17564:
March of Asteroids Across Dying Star
Full Resolution:     TIFF (199.1 MB)     JPEG (8.773 MB)
Add Image to Favorite List 2013-12-12 Herschel Space Observatory
Hubble Space Telescope
 PACS
WFPC2
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This image shows a composite view of the Crab nebula, an iconic supernova remnant in our Milky Way galaxy, as viewed by the Herschel Space Observatory and the Hubble Space Telescope.
PIA17563:
Crab Nebula, as Seen by Herschel and Hubble
Full Resolution:     TIFF (44.81 MB)     JPEG (1.205 MB)
Add Image to Favorite List 2013-12-03 Wide-field Infrared Survey Explorer (WISE)
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NASA's Wide-field Infrared Survey Explorer, or WISE, helped lead astronomers to what appears to be a new example of a dancing black hole duo.
PIA17562:
Two Black Holes on Way to Becoming One (Artist's Concept)
Full Resolution:     TIFF (2.766 MB)     JPEG (108.1 kB)
Add Image to Favorite List 2013-11-26 NuSTAR
 NuSTAR
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The magenta spots in this image from NASA's NuSTAR show two black holes in the spiral galaxy called NGC 1313, or the Topsy Turvy galaxy, located about 13 million light-years away in the Reticulum constellation.
PIA17561:
Topsy Turvy Black Holes
Full Resolution:     TIFF (5.882 MB)     JPEG (137.5 kB)
Add Image to Favorite List 2013-11-26 NuSTAR
 NuSTAR
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Magenta spots in this image from NASA's NuSTAR show two black holes in the Circinus galaxy, located 13 million light-years from Earth in the Circinus constellation.
PIA17560:
Black Holes of the Circinus Galaxy
Full Resolution:     TIFF (7.683 MB)     JPEG (599.9 kB)
Add Image to Favorite List 2013-11-26 Hubble Space Telescope
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Warping occurs naturally in nature in a phenomenon called strong gravitational lensing as shown in this image simulated from original images from NASA's Hubble Space Telescope.
PIA17559:
Warped Galaxies Quiz
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Add Image to Favorite List 2013-11-21 Spitzer Space Telescope
Hubble Space Telescope
Subaru Telescope
 IRAC
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The big blob-like structure shown here, named Himiko after the legendary ancient queen of Japan, turns out to be three galaxies thought to be in the process of merging into one.
PIA17558:
Three-headed Galactic Blob
Full Resolution:     TIFF (2.766 MB)     JPEG (33.67 kB)
Add Image to Favorite List 2013-11-14 Wide-field Infrared Survey Explorer (WISE)
 WISE Telescope
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The new AllWISE catalog will bring distant galaxies that were once invisible out of hiding, as illustrated in this image. At right, a portion of the sky available before the AllWISE project; at left, the same part of the sky in a new AllWISE image.
PIA17557:
AllWISE Brings Galaxies Out of Hiding
Full Resolution:     TIFF (12.24 MB)     JPEG (206.5 kB)
Add Image to Favorite List 2013-11-14 Spitzer Space Telescope
Wide-field Infrared Survey Explorer (WISE)
 Very Large Array (VLA)
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New detailed radio data from the NRAO's Jansky Very Large Array (VLA) revealed that the large perpendicular extension of UGC 10288's halo (blue) is really a distant background galaxy with radio jets.
PIA17556:
Two Galaxies Masquerading as One
Full Resolution:     TIFF (7.311 MB)     JPEG (99.06 kB)
Add Image to Favorite List 2013-11-11 Spitzer Space Telescope
 ALMA
IRAC
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Combined observations from NASA's Spitzer Space Telescope and the newly completed Atacama Large Millimetre/submillimeter Array (ALMA) in Chile have revealed the throes of stellar birth in the well-studied object known as HH 46/47.
PIA17555:
Bubbly Newborn Star
Full Resolution:     TIFF (6.753 MB)     JPEG (150.4 kB)
Add Image to Favorite List 2013-10-31 Galaxy Evolution Explorer (GALEX)
Wide-field Infrared Survey Explorer (WISE)
 GALEX Telescope
WISE Telescope
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Evidence from NASA's Wide-field Infrared Survey Explorer and Galaxy Evolution Explorer missions provide support for the 'inside-out' theory of galaxy evolution, which holds that star formation starts at the core of the galaxy and spreads outward.
PIA17554:
Galaxies Grow from Inside Out
Full Resolution:     TIFF (3.196 MB)     JPEG (33.78 kB)
Add Image to Favorite List 2013-10-30 Wide-field Infrared Survey Explorer (WISE)
 WISE Telescope
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An infrared portrait of the Witch Head nebula from NASA's Wide-field Infrared Survey Explorer, or WISE, shows billowy clouds where new stars are brewing.
PIA17553:
'Witch Head' Brews Baby Stars
Full Resolution:     TIFF (252 MB)     JPEG (7.886 MB)
Add Image to Favorite List 2013-10-28 Spitzer Space Telescope
 IRAC
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This trio of ghostly images from NASA's Spitzer Space Telescope shows the disembodied remains of dying stars called planetary nebulas. Planetary nebulas are a late stage in a sun-like star's life.
PIA17552:
Death Beckons Three Aging Stars
Full Resolution:     TIFF (21.86 MB)     JPEG (480 kB)
Add Image to Favorite List 2013-10-25 Hubble Space Telescope
 ALMA
Hubble Space Telescope
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The Boomerang nebula, called the 'coldest place in the universe,' reveals its true shape to the Atacama Large Millimeter/submillimeter Array (ALMA) telescope. The background blue structure, is seen in visible light by NASA's Hubble Space Telescope.
PIA17551:
Ghostly 'Boomerang'
Full Resolution:     TIFF (9.318 MB)     JPEG (384.9 kB)
Add Image to Favorite List 2013-10-25 Kepler
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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.
PIA17550:
A Tale of Two Worlds: Silicate Versus Carbon Planets (Artist Concept)
Full Resolution:     TIFF (48.02 MB)     JPEG (793.5 kB)
Add Image to Favorite List 2013-09-30 Kepler
Spitzer Space Telescope
 Kepler Telescope
Spitzer Space Telescope
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Kepler-7b (right), which is 1.5 times the radius of Jupiter (left), is the first exoplanet to have its clouds mapped. The cloud map was produced using data from NASA's Kepler and Spitzer space telescopes.
PIA17445:
Partially Cloudy Skies on Kepler-7b (Artist Concept)
Full Resolution:     TIFF (24.89 MB)     JPEG (243 kB)
Add Image to Favorite List 2013-09-12 Sol (our sun) Voyager
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This schematic shows our solar bubble moving through nearby interstellar space, or the space between stars.
PIA17463:
Heliosphere Traveling Through Interstellar Space
Full Resolution:     TIFF (2.766 MB)     JPEG (72.59 kB)
Add Image to Favorite List 2013-09-12 Sol (our sun) Voyager
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This artist's concept depicts NASA's Voyager 1 spacecraft entering interstellar space. Interstellar space is dominated by the plasma, or ionized gas, that was ejected by the death of nearby giant stars millions of years ago.
PIA17462:
Voyager 1 Entering Interstellar Space (Artist Concept)
Full Resolution:     TIFF (113.3 MB)     JPEG (938.1 kB)
Add Image to Favorite List 2013-09-12 Sol (our sun) Voyager
 Oschin Schmidt Telescope
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The image taken by the Oschin Schmidt Telescope, shows the star AC +79 3888, also known as Gliese 445. NASA's Voyager 1 spacecraft, which is on a trajectory out of our solar system, is headed toward an encounter with AC +79 3888 (circled in red).
PIA17461:
Heading toward Gliese 445
Full Resolution:     TIFF (796.7 kB)     JPEG (105.7 kB)
Add Image to Favorite List 2013-09-12 Sol (our sun) Voyager
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This artist's concept shows the outer layers of our solar bubble, or heliosphere, and nearby interstellar space. NASA's Voyager 1 is currently exploring a region of interstellar space.
PIA17460:
Moving into Interstellar Space (Artist Concept)
Full Resolution:     TIFF (2.766 MB)     JPEG (120.1 kB)
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