17 February 2011, 08:46 AM ET
NASA's Stardust-NExT mission took this image of comet Tempel 1 at 8:39 p.m. PST (11:39 p.m. EST) on Feb 14, 2011. The comet was first visited by NASA's Deep Impact mission in 2005.
01 February 2011, 06:59 PM ET
The Milky Way shines in all its majesty, as well as the Magellanic Clouds on the right, at the European Southern Observatory's Very Large Telescope in Chile.
16 December 2010, 02:38 PM ET
The planets showing their relation to the sun.
16 December 2010, 02:35 PM ET
Earth as seen from space
16 December 2010, 02:31 PM ET
Eight planets of the solar system montaged.
16 December 2010, 02:29 PM ET
Artist's conception of how two Pluto-sized objects may have created the dust ring around Vega.
16 December 2010, 02:26 PM ET
Artist's conception of a solar system distant from Earth
15 December 2010, 06:18 PM ET
Saturn and its rings.
15 December 2010, 06:15 PM ET
Artist's conception of Sedna, a trans-Neptunian object
15 December 2010, 04:48 PM ET
Andromeda galaxy, our nearest spiral galaxy neighbor.
15 December 2010, 04:45 PM ET
This artist's conception shows a star with a dusty disk encircling it, yet to coalesce into planets.
15 December 2010, 04:33 PM ET
The gas giant planet in its entirety.
14 December 2010, 05:52 PM ET
Mars seen in its entirety.
14 December 2010, 05:47 PM ET
Shadowed craters stand out in relief on the moon.
14 December 2010, 05:45 PM ET
Gas clouds in the constellation Orion.
14 December 2010, 05:39 PM ET
Space shuttle Endeavor soars above Earth.
14 December 2010, 05:35 PM ET
Earth and moon images together in one wallpaper
14 December 2010, 05:19 PM ET
The Earth hangs in the blackness of space.
14 December 2010, 05:16 PM ET
A global view of Venus.
14 December 2010, 03:56 PM ET
A stunning view of a spiral galaxy in deep space.
14 December 2010, 03:49 PM ET
The Jet Propulsion Lab likes to use this image as their background.
21 October 2010, 01:24 PM ET
On April 28, 2010, Cassini flew by Saturn's moon, Enceladus, as pictured in an artist's conception.
21 October 2010, 01:20 PM ET
Atlantis hanging onto the ISS in May 2010.
21 October 2010, 01:18 PM ET
This artist's conception depicts a watery alien planet beyond a belt of asteroids circling a distant star.
21 October 2010, 01:17 PM ET
Discovery docked to the ISS with Leonardo in the payload bay.
21 October 2010, 01:02 PM ET
The International Space Station's new cupola provides dramatic views of Earth.
21 October 2010, 01:00 PM ET
Astronaut Robert L. Satcher Jr., photographs his helmet visor outside the International Space Station in November 2009.
21 October 2010, 12:58 PM ET
A spiral galaxy gains a purplish hue in the false-color view from a space telescope.
21 October 2010, 12:49 PM ET
The Earth as seen by Apollo 17 astronauts.
20 October 2010, 04:46 PM ET
Astronaut Nicholas Patrick works on the new cupola outside the International Space Station.
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