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Ancient Mars Streambed

Vote Now! Top Space Stories Of The Week Sept. 30, 2012

Curiosity Rover's Deck Photographed by Mast Camera

Vote Now! Strangest Things On Mars Rover Curiosity

This composite color image shows the galaxy cluster MACS1149+2223, which creates a gravitational lens to magnify an extremely distant galaxy in the background (inset).

Vote Now! Top Space Stories Of The Week Sept. 23, 2012

Space shuttle Discovery at Launch Pad with moon

8 Surprising Space Shuttle Facts

Discovery Puts New Spin on Universe's Most Powerful Magnets

Vote Now! Top Space Stories Of The Week Sept. 16, 2012

Saturn's moon Mimas is dominated by a huge, unmistakable crater called Herschel that makes the moon look like the Death Star in the movie "Star Wars." On Feb. 13, 2010, NASA's Cassini spacecraft made closest-ever flyby of Mimas, returning this photo an

10 Real Alien Worlds That Resemble 'Star Wars' Planets

Possible disintegrating alien planet found using Kepler data.

Vote Now! Top Space Stories Of The Week Sept. 9, 2012

school supplies

Space.Com's Back To School Shopping Guide

Exposing Black Holes Disguised in Dust

Vote Now! Top Space Stories Of The Week Sept. 2, 2012

Namibia Dark Sky

The Most Extreme Stargazing Objects In The Night Sky

Tribute photo for Neil Armstrong by NASA

Vote Now! Top Space Stories Of The Week Aug. 26, 2012

black hole particles escaping

The Strangest Black Holes In The Universe

Artist's Impression of Phoenix Cluster Galaxy

Vote Now! Top Space Stories Of The Week Aug. 19, 2012

The large planet in the foreground is Gliese 581g, which is in the middle of the star's habitable zone and is only three to four times as massive as Earth.

The Top 5 Potentially Habitable Alien Planets

Artist's Conception of Curiosity Mars Rover

Vote Now! Top Space Stories Of The Week Aug. 12, 2012

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