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This image of the dwarf spiral galaxy NGC 247 was taken by NASA's Galaxy Evolution Explorer on October 13, 2003, in a single orbit exposure of 1600 seconds.
This image of the dwarf spiral galaxy NGC 247 was taken by NASA's Galaxy Evolution Explorer on October 13, 2003, in a single orbit exposure of 1600 seconds.

Galaxy NGC 247

NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.
NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.

NGC 520

AM 1316-241 is made up of two interacting galaxies—a spiral galaxy (on the left of the frame) in front of an elliptical galaxy (on the right of the frame). This image is part of a large collection of images of merging galaxies taken by NASA's Hubble.
AM 1316-241 is made up of two interacting galaxies—a spiral galaxy (on the left of the frame) in front of an elliptical galaxy (on the right of the frame). This image is part of a large collection of images of merging galaxies taken by NASA's Hubble.

AM 1316-241

Evidence from NASA's Galaxy Evolution Explorer supports the long-held notion that many galaxies begin life as smaller spirals before transforming into larger, elliptical-shaped galaxies.
Evidence from NASA's Galaxy Evolution Explorer supports the long-held notion that many galaxies begin life as smaller spirals before transforming into larger, elliptical-shaped galaxies.

Portrait of a Galaxy's Life

This image from NASA's Galaxy Evolution Explorer shows M33, the Triangulum Galaxy, is a perennial favorite of amateur and professional astronomers alike, due to its orientation and relative proximity to us.
This image from NASA's Galaxy Evolution Explorer shows M33, the Triangulum Galaxy, is a perennial favorite of amateur and professional astronomers alike, due to its orientation and relative proximity to us.

Anatomy of a Triangulum

This image demonstrates how data from two of NASA's Great Observatories, the Spitzer and Hubble Space Telescopes, are used to identify one of the most distant galaxies ever seen. This galaxy is named named HUDF-JD2.
This image demonstrates how data from two of NASA's Great Observatories, the Spitzer and Hubble Space Telescopes, are used to identify one of the most distant galaxies ever seen. This galaxy is named named HUDF-JD2.

Big Galaxy in Baby Universe

This artist's conception symbolically represents complex organic molecules, known as polycyclic aromatic hydrocarbons, seen in the early universe. These large molecules, comprised of carbon and hydrogen, are considered among the building blocks of life.
This artist's conception symbolically represents complex organic molecules, known as polycyclic aromatic hydrocarbons, seen in the early universe. These large molecules, comprised of carbon and hydrogen, are considered among the building blocks of life.

Ingredients for Life (Artist's Concept)

Since its launch in 2003, NASA's Galaxy Evolution Explorer the space telescope originally designed to observe galaxies across the universe in ultraviolet light has discovered a festive sky blinking with flaring and erupting stars.
Since its launch in 2003, NASA's Galaxy Evolution Explorer the space telescope originally designed to observe galaxies across the universe in ultraviolet light has discovered a festive sky blinking with flaring and erupting stars.

It's Not a Bird or a Plane

This artist's concept demonstrates that an invisible galaxy shrouded in dust can become glaringly bright when viewed in infrared light.
This artist's concept demonstrates that an invisible galaxy shrouded in dust can become glaringly bright when viewed in infrared light.

Invisible Galaxies Come to Life! (Artist Concept)

NASA's Spitzer Space Telescope recently captured these images of the star Vega, located 25 light years away in the constellation Lyra.
NASA's Spitzer Space Telescope recently captured these images of the star Vega, located 25 light years away in the constellation Lyra.

Tiny Particles, So Far Away

Hidden behind a shroud of dust in the constellation Cygnus is a stellar nursery called DR21 as seen by NASA's Spitzer Space Telescope.
Hidden behind a shroud of dust in the constellation Cygnus is a stellar nursery called DR21 as seen by NASA's Spitzer Space Telescope.

Nursery of Giants

This image shows the star VB 10 moving across the sky over a period of nine years. Astronomers nabbed a planet circling this star using a method called astrometry -- the first successful application of the method to planet hunting.
This image shows the star VB 10 moving across the sky over a period of nine years. Astronomers nabbed a planet circling this star using a method called astrometry -- the first successful application of the method to planet hunting.

How to Find a Tiny Wobble in a Zippy Star

NGC 6621/2 (VV 247, Arp 81) is a strongly interacting pair of galaxies, seen about 100 million years after their closest approach. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.
NGC 6621/2 (VV 247, Arp 81) is a strongly interacting pair of galaxies, seen about 100 million years after their closest approach. This image is part of a large collection of images of merging galaxies taken by NASA's Hubble Space Telescope.

NGC 6621/2

NGC 6090 is a beautiful pair of spiral galaxies with an overlapping central region and two long tidal tails formed from material ripped out of the galaxies by gravitational interaction. This image is from NASA's Hubble Space Telescope.
NGC 6090 is a beautiful pair of spiral galaxies with an overlapping central region and two long tidal tails formed from material ripped out of the galaxies by gravitational interaction. This image is from NASA's Hubble Space Telescope.

NGC 6090 - a Pair of Spiral Galaxies

This beautiful pair of interacting galaxies consists of NGC 5754, the large spiral on the right, and NGC 5752, the smaller companion in the bottom left corner of the image. This image is from NASA's Hubble Space Telescope.
This beautiful pair of interacting galaxies consists of NGC 5754, the large spiral on the right, and NGC 5752, the smaller companion in the bottom left corner of the image. This image is from NASA's Hubble Space Telescope.

Interacting Galaxies

This plot of data from NASA's Spitzer Space Telescope indicates that a flat, spiral galaxy called NGC 3621 has a feeding, supermassive black hole lurking within it.
This plot of data from NASA's Spitzer Space Telescope indicates that a flat, spiral galaxy called NGC 3621 has a feeding, supermassive black hole lurking within it.

Slender Galaxy with Robust Black Hole

This artist's concept shows four of the five planets that orbit 55 Cancri, a star much like our own. The most recently discovered planet, and the fourth out from the star, looms large in the foreground.
This artist's concept shows four of the five planets that orbit 55 Cancri, a star much like our own. The most recently discovered planet, and the fourth out from the star, looms large in the foreground.

Plentiful Planetary System (Artist Concept)

This plot tells astronomers that a fifth planet is in orbit around the star 55 Cancri, making the star the record-holder for hosting the most known exoplanets.
This plot tells astronomers that a fifth planet is in orbit around the star 55 Cancri, making the star the record-holder for hosting the most known exoplanets.

Wave of a Planet

This infrared data from NASA's Spitzer Space Telescope -- called a spectrum -- tells astronomers that a distant gas planet, a so-called
This infrared data from NASA's Spitzer Space Telescope -- called a spectrum -- tells astronomers that a distant gas planet, a so-called

Cracking the Code of Faraway Worlds

This artist concept shows that NASA's Spitzer Space Telescope found evidence that this star, the remains of which are named Cassiopeia A, exploded with some degree of order, preserving chunks of its onion-like layers as it blasted apart.
This artist concept shows that NASA's Spitzer Space Telescope found evidence that this star, the remains of which are named Cassiopeia A, exploded with some degree of order, preserving chunks of its onion-like layers as it blasted apart.

Once an Onion, Always an Onion (Artist Concept)

This artist's concept shows a Jupiter-like planet soaking up the scorching rays of its nearby 'sun.' This NASA Spitzer Space Telescope illustration portrays how the planet would appear to infrared eyes, showing temperature variations across its surface.
This artist's concept shows a Jupiter-like planet soaking up the scorching rays of its nearby 'sun.' This NASA Spitzer Space Telescope illustration portrays how the planet would appear to infrared eyes, showing temperature variations across its surface.

Exotic World Blisters Under the Sun (Artist Concept)

The top graph consists of infrared data from NASA's Spitzer Space Telescope. It tells astronomers that a distant planet, called Upsilon Andromedae b, always has a giant hot spot on the side that faces the star, while the other side is cold and dark.
The top graph consists of infrared data from NASA's Spitzer Space Telescope. It tells astronomers that a distant planet, called Upsilon Andromedae b, always has a giant hot spot on the side that faces the star, while the other side is cold and dark.

The Light and Dark Sides of a Distant Planet

This artist's concept shows microscopic crystals in the dusty disk surrounding a brown dwarf, or 'failed star.' The crystals, made up of a green mineral found on Earth called olivine, are thought to help seed the formation of planets.
This artist's concept shows microscopic crystals in the dusty disk surrounding a brown dwarf, or 'failed star.' The crystals, made up of a green mineral found on Earth called olivine, are thought to help seed the formation of planets.

Sowing the Seeds of Planets? (Artist's Concept)

This graph, or spectrum, from NASA's Spitzer Space Telescope, charts light from a faraway galaxy located 10 billion light years from Earth. It tracks mid-infrared light from an extremely luminous galaxy when the universe was only 1/4 of its current age.
This graph, or spectrum, from NASA's Spitzer Space Telescope, charts light from a faraway galaxy located 10 billion light years from Earth. It tracks mid-infrared light from an extremely luminous galaxy when the universe was only 1/4 of its current age.

Charting Ingredients for Life

This frame from an artist's animation shows the view from a hypothetical moon in orbit around the first known planet to reside in a tight-knit triple-star system. HD 188553 Ab is a gas giant planet, about 1.14 times the mass of Jupiter.
This frame from an artist's animation shows the view from a hypothetical moon in orbit around the first known planet to reside in a tight-knit triple-star system. HD 188553 Ab is a gas giant planet, about 1.14 times the mass of Jupiter.

Land of Three Suns (Artist's Concept Animation)

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