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This image taken with the Palomar Observatory's Hale Telescope, shows the light from three planets orbiting a star 120 light-years away. The planets' star, called HR8799, is located at the spot marked with an 'X.'
This image taken with the Palomar Observatory's Hale Telescope, shows the light from three planets orbiting a star 120 light-years away. The planets' star, called HR8799, is located at the spot marked with an 'X.'

Portrait of Distant Planets

This image is an all-sky infrared map consisting of data taken by previous missions: the Infrared Astronomical Satellite; NASA's Cosmic Background Explorer; and the Two-Micron All-Sky Survey.
This image is an all-sky infrared map consisting of data taken by previous missions: the Infrared Astronomical Satellite; NASA's Cosmic Background Explorer; and the Two-Micron All-Sky Survey.

WISE Eyes the Whole Sky

NASA's Hubble Space Telescope has imaged an unusual edge-on galaxy, revealing remarkable details of its warped dusty disc and showing how colliding galaxies trigger the birth of new stars.
NASA's Hubble Space Telescope has imaged an unusual edge-on galaxy, revealing remarkable details of its warped dusty disc and showing how colliding galaxies trigger the birth of new stars.

Edge-on Galaxy

NASA's Galaxy Evolution Explorer is celebrates its fourth year in space with some of M81's 'hottest' stars. In this ultraviolet image, the magnificent M81 spiral galaxy is shown at the center.
NASA's Galaxy Evolution Explorer is celebrates its fourth year in space with some of M81's 'hottest' stars. In this ultraviolet image, the magnificent M81 spiral galaxy is shown at the center.

Galaxy Mission Completes Four Star-Studded Years in Space

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.
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.

The Case of Missing Iron in Cassiopeia A

ESA's Herschel Space Observatory captured asteroid Apophis in its field of view during the approach to Earth on Jan. 5 and 6, 2013.
ESA's Herschel Space Observatory captured asteroid Apophis in its field of view during the approach to Earth on Jan. 5 and 6, 2013.

Herschel's Three-Color View of Asteroid Apophis

Observations from NASA's Spitzer Space Telescope provide strong evidence that the slender, bulgeless galaxies can, like their chubbier counterparts, harbor supermassive black holes at their cores in this artist concept.
Observations from NASA's Spitzer Space Telescope provide strong evidence that the slender, bulgeless galaxies can, like their chubbier counterparts, harbor supermassive black holes at their cores in this artist concept.

Galaxies of all Shapes Host Black Holes (Artist Concept)

This frame from an animation based on NASA's Spitzer Space Telescope data  illustrates an unexpected warm spot on the surface of a gaseous exoplanet. The bright orange patches are the hottest part of the planet.
This frame from an animation based on NASA's Spitzer Space Telescope data  illustrates an unexpected warm spot on the surface of a gaseous exoplanet. The bright orange patches are the hottest part of the planet.

Weird Warm Spot on Exoplanet

This ESA Herschel image shows IRC+10216, also known as CW Leonis, a star rich in carbon where astronomers were surprised to find water. This color-coded image shows the star, surrounded by a clumpy envelope of dust.
This ESA Herschel image shows IRC+10216, also known as CW Leonis, a star rich in carbon where astronomers were surprised to find water. This color-coded image shows the star, surrounded by a clumpy envelope of dust.

Water Around a Carbon Star

This diagram shows findings of results of observations made primarily by NASA's Spitzer Telescopes and the Very Large Array radio telescope and illuminates new details about a celestial 'sandbar' connecting two massive islands of galaxies.
This diagram shows findings of results of observations made primarily by NASA's Spitzer Telescopes and the Very Large Array radio telescope and illuminates new details about a celestial 'sandbar' connecting two massive islands of galaxies.

Bent Galactic Jets

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.
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.

Partially Cloudy Skies on Kepler-7b (Artist Concept)

The entire sky as mapped by NASA's WISE at infrared wavelengths is shown here, with an artist's concept of the WISE satellite superimposed.
The entire sky as mapped by NASA's WISE at infrared wavelengths is shown here, with an artist's concept of the WISE satellite superimposed.

A WISE 'Eye' on the Whole Sky

An infrared photo of the Small Magellanic Cloud taken by NASA's Spitzer Space Telescope is shown in this artist's illustration; an example of a planetary nebula, and a magnified depiction of buckyballs.
An infrared photo of the Small Magellanic Cloud taken by NASA's Spitzer Space Telescope is shown in this artist's illustration; an example of a planetary nebula, and a magnified depiction of buckyballs.

Extragalactic Space Balls (Artist Concept)

This artist's concept shows hundreds of brown dwarfs (deep red), expected to be added to the population of known stars in our solar neighborhood. Our sun and other known stars appear white, yellow or red.
This artist's concept shows hundreds of brown dwarfs (deep red), expected to be added to the population of known stars in our solar neighborhood. Our sun and other known stars appear white, yellow or red.

Coolest Orbs on the Block (Artist's Concept)

This graph of data from NASA's Spitzer Space Telescope shows how astronomers located a hot spot on a distant gas planet named upsilon Andromedae b. Termed an exoplanet, it orbits a star beyond our sun, and whips around very closely to its star.
This graph of data from NASA's Spitzer Space Telescope shows how astronomers located a hot spot on a distant gas planet named upsilon Andromedae b. Termed an exoplanet, it orbits a star beyond our sun, and whips around very closely to its star.

How to Find a Planetary Hot Spot

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.
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.

AllWISE Brings Galaxies Out of Hiding

NASA's Great Observatories continue Galileo's legacy with stunning images and breakthrough science from the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory.
NASA's Great Observatories continue Galileo's legacy with stunning images and breakthrough science from the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory.

NASA's Great Observatories Celebrate the International Year of Astronomy

This is an image from NASA's Spitzer Space Telescope of stars and galaxies in the Ursa Major constellation. This infrared image covers a region of space so large that light would take up to 100 million years to travel across it.
This is an image from NASA's Spitzer Space Telescope of stars and galaxies in the Ursa Major constellation. This infrared image covers a region of space so large that light would take up to 100 million years to travel across it.

The Universe's First Fireworks

Observations from NASA's Spitzer Space Telescope, taken in infrared light, have helped to reveal that a small asteroid called 2011 MD is made-up of two-thirds empty space.
Observations from NASA's Spitzer Space Telescope, taken in infrared light, have helped to reveal that a small asteroid called 2011 MD is made-up of two-thirds empty space.

Solid as a Rock? Porosity of Asteroids

NASA's Spitzer Space Telescope has, for the first time, detected tiny quartz-like crystals sprinkled in young planetary systems. The crystals, which are types of silica minerals called cristobalite and tridymite.
NASA's Spitzer Space Telescope has, for the first time, detected tiny quartz-like crystals sprinkled in young planetary systems. The crystals, which are types of silica minerals called cristobalite and tridymite.

Quartz-like Crystals Found in Planetary Disks

Something appears to be peering through a shiny red mask, in this new false-colored image from NASA's Spitzer Space Telescope. The mysterious blue eyes are actually starlight from the cores of two merging galaxies, called NGC 2207 and IC 2163.
Something appears to be peering through a shiny red mask, in this new false-colored image from NASA's Spitzer Space Telescope. The mysterious blue eyes are actually starlight from the cores of two merging galaxies, called NGC 2207 and IC 2163.

Ready for the Cosmic Ball

The 'Ghost of Mirach' galaxy is shown in visible light on the left, and in ultraviolet as seen by NASA's Galaxy Evolution Explorer on the right. The fields of view are identical in both pictures, with the Ghost of Mirach -— a galaxy called NGC 404.
The 'Ghost of Mirach' galaxy is shown in visible light on the left, and in ultraviolet as seen by NASA's Galaxy Evolution Explorer on the right. The fields of view are identical in both pictures, with the Ghost of Mirach -— a galaxy called NGC 404.

'Ghost of Mirach' Rears its Spooky Head

This is an artist's concept of a hypothetical 10-million-year-old star system. The bright blur at the center is a star much like our sun. The other orb in the image is a gas-giant planet like Jupiter.
This is an artist's concept of a hypothetical 10-million-year-old star system. The bright blur at the center is a star much like our sun. The other orb in the image is a gas-giant planet like Jupiter.

Gas Giants Form Quickly (Artist Concept)

This majestic false-color image from NASA's Spitzer Space Telescope shows 'mountains' where stars are born. These towering pillars of cool gas and dust are illuminated at their tips with light from warm embryonic stars.
This majestic false-color image from NASA's Spitzer Space Telescope shows 'mountains' where stars are born. These towering pillars of cool gas and dust are illuminated at their tips with light from warm embryonic stars.

Towering Infernos

This is the first Deep Imaging Survey image taken by NASA's Galaxy Evolution Explorer. On June 22 and 23, 2003, the spacecraft obtained this near ultraviolet image of the Groth region by adding multiple orbits for a total exposure time of 14,000 seconds.
This is the first Deep Imaging Survey image taken by NASA's Galaxy Evolution Explorer. On June 22 and 23, 2003, the spacecraft obtained this near ultraviolet image of the Groth region by adding multiple orbits for a total exposure time of 14,000 seconds.

Deep Imaging Survey

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