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Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.

The Challenger disaster: What went wrong
Tue, Jan 25, 2011 11:49 AM by Space.com
On the 25th anniversary, a look back at the tragic space mission that transformed NASA.
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Religion & astronomy: From Galileo to aliens
Mon, Jan 24, 2011 3:01 PM by Space.com
Part 2 of a series exploring the cosmos from the perspective of Vatican astronomers.
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Remembering Challenger: NASA to mark space tragedy anniversaries
Mon, Jan 24, 2011 1:30 PM by Space.com
NASA marks multiple tragedies this week with a special Web telecast commemorating Apollo 1, Challenger and Columbia.
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Success in space: Tiny NASA satellite unfurls solar sail
Mon, Jan 24, 2011 10:58 AM by Space.com
Satellite's mission is to test use of solar sails in space as power alternatives for low-orbit space craft.
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Reverence for the heavens: How astronomy and religion intersect
Fri, Jan 21, 2011 4:41 PM by Space.com
Part 1 of a series exploring the cosmos from the perspective of Vatican astronomers.
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NASA: Last space shuttle flight to launch June 28
Fri, Jan 21, 2011 4:35 PM by Space.com
NASA has officially set a launch date for the STS-135 mission of shuttle Atlantis, the very last space shuttle flight before it's retired.
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Spacewalking: Astronauts need more than the right stuff
Fri, Jan 21, 2011 3:54 PM by Space.com
The replacement of an astronaut puts the spotlight on the physical challenges of working outside in space.
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9 surreal images of Venus
Fri, Jan 21, 2011 12:10 PM by Katherine Butler
Venus, second planet to the sun, is named for the Roman goddess of beauty and love. While eerily beautiful, the surface of Venus is as hostile as the deepest recesses of space.
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Largest U.S. rocket in service blasts off from West Coast
Fri, Jan 21, 2011 10:30 AM by Space.com
The 235-foot rocket carries a spy satellite for a classified mission from the U.S. National Reconnaissance Office.
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NASA sets final space shuttle mission for June 28

Thu, Jan 20, 2011 3:13 PM by Agence France-Presse

Atlantis's launch will be NASA's 135th and final shuttle mission into space.
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NASA plans Valentine's date with a comet

Wed, Jan 19, 2011 3:44 PM by Agence France Presse

The Stardust-NExT spacecraft will be rapidly snapping pictures of the Tempel 1 comet as they pass at a mere distance of 124 miles.
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Space agencies worldwide challenge kids to 'train like astronauts'

Tue, Jan 18, 2011 7:22 PM by Agence France-Presse

The six-week pilot project, called "Mission X: Train Like an Astronaut" aims to teach healthy eating and exercise habits to children.
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NASA's flying telescope puts Orion in new light
Tue, Jan 18, 2011 5:24 AM by Bryan Nelson
New telescope called SOFIA, which is actually a modified 747 jet, releases photographs from its first science mission.
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Scientist suggests study of sex in space
Mon, Jan 17, 2011 1:56 PM by Katherine Butler
New journal looks at sex on Mars and questions why NASA is so silent on the subject.
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Obscure full moon names of 2011
Mon, Jan 17, 2011 11:58 AM by Space.com
Each full moon has its own name that comes from the names given to the lunar events by Native Americans.
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