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

Sex and pregnancy on Mars: A risky proposition
Fri, Feb 11, 2011 4:38 PM by Space.com
Space radiation can damage sperm and cause sterility.
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Red planet for sale? How corporate sponsors could send humans to Mars
Fri, Feb 11, 2011 2:37 PM by Space.com
NASA proposal seeks $160 million from companies to pay for Mars trip and colony.
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FAQ: Inside NASA's Valentine's Day visit to Comet Tempel 1
Fri, Feb 11, 2011 1:08 PM by Space.com
NASA hopes the glimpse of the comet will help scientists understand how comets form.
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Experiment volunteers 'to land on Mars'

Fri, Feb 11, 2011 1:03 PM by Benoit Finck, AFP

The "landing" marks the halfway point for participants spending 520 days in isolation to test how humans would respond to the long voyage to Mars.
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Astronaut's space tales aim to inspire

Fri, Feb 11, 2011 9:32 AM by Kerry Sheridan, AFP

Former NFL player turned astronaut encourages children to 'become scientists and engineers.'
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Some of universe's first stars may still be visible
Thu, Feb 10, 2011 8:11 PM by Space.com
A new study that suggests the first stars in the universe may have formed in groups instead of in isolation, as previously thought, has also found something else: Under the right conditions, some of these first stars may be visible today.
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Shuttle unharmed after tool accident

Thu, Feb 10, 2011 8:07 PM by Agence France-Presse

A measuring tool fell during repair work, but the accident has not compromised Discovery's February 24 mission to the International Space Station.
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Hoax in the Holy Land: Jerusalem UFO a proven fake
Wed, Feb 09, 2011 1:33 PM by Space.com
Lack of witness and apparent video tampering point to the videos show a UFO in Jerusalem as false.
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U.S. isn't pushing private space effort hard enough, group says
Wed, Feb 09, 2011 1:17 PM by Space.com
The Competitive Space Task Force calls for more opportunities for private investments in space travel and scientific research.
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Car-sized asteroid to pass close by Earth
Wed, Feb 09, 2011 8:54 AM by Space.com
A small asteroid will pass Earth on Wednesday — the second space rock in five days to fly so close — but will pose no threat.
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NASA pics show Sun 'in stereo'

Tue, Feb 08, 2011 12:46 PM by Agence-France Presse

Images can improve space weather forecasts made for power companies and airlines.
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E.U., U.S. partners plan 'low-cost' space launcher

Tue, Feb 08, 2011 5:04 AM by Agence France-Presse

Companies aim to have the launcher ready by 2013, with financial backing from NASA.
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Giffords' husband resumes astronaut training for shuttle flight
Mon, Feb 07, 2011 4:13 PM by Space.com
Astronaut Mark Kelly has resumed training with the Endeavour's crew for their flight in April.
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Will Apophis the asteroid hit Earth in 2036?
Fri, Feb 04, 2011 12:26 PM by Space.com
NASA rejects the Russian report, calling the chances of Apophis hitting Earth 'minuscule.'
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Mark Kelly, Giffords' astronaut husband, will fly into space
Fri, Feb 04, 2011 10:33 AM by Space.com
He will command space shuttle Endeavour's final mission to the International Space Station.
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