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

NASA at crossroads after 50 years of U.S. spaceflight
Thu, May 05, 2011 10:45 AM by Space.com
On the anniversary of Alan Shepard's first American spaceflight, the United States is at a turning point in space as the space shuttles are retiring and NASA is looking toward commercial spaceships for the future.
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Alien planet nearly dense as lead
Thu, May 05, 2011 10:17 AM by Space.com
The exoplanet 55 Cancri e is 60 percent larger in diameter than Earth but eight times as massive, making the alien world the densest solid planet known – twice as dense as Earth.
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Space souvenir auction to mark birth of U.S. spaceflight
Wed, May 04, 2011 11:18 AM by Space.com
Bonham's NY is poised to sell off some choice memorabilia this week to mark the 50th anniversary of NASA's first human spaceflight by Mercury astronaut Alan Shepard on May 5, 1961.
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NASA delays final launch of shuttle Endeavour again
Tue, May 03, 2011 12:47 PM by Space.com
The Endeavour crew will do some light training and remain in pre-launch quarantine while repairs are finished on the shuttle.
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Italian astronaut's mother dies while he's in space
Tue, May 03, 2011 12:28 PM by Space.com
Various forms of emotional support will be made available to the Italian through NASA and the European Space Agency.
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Meteor shower spawned by Halley's Comet peaks Friday
Tue, May 03, 2011 12:03 PM by Space.com
Meteor shower will be more plentiful south of the Equator, but to the north the shower will be a little harder to enjoy.
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Largest 3-D map opens window to the ancient universe
Mon, May 02, 2011 12:50 PM by Space.com
Map could help explain how the universe expands, and give new insights into dark energy.
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Endeavour's shuttle launch delay comes with large price tag
Mon, May 02, 2011 12:07 PM by Space.com
Delays are factored into each mission's budget to prevent costs from spiraling out of control.
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10 incredible images of the sun
Mon, May 02, 2011 11:38 AM by Katherine Butler
The sun is the center of all life and energy for Earth. Check out these incredible images of the sun taken by NASA.
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NASA delays shuttle Endeavour's last launch a week for repairs
Mon, May 02, 2011 11:18 AM by Space.com
May 8 is the earliest possible launch date for Endeavour's final flight.
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NASA working on space taxi?

Mon, May 02, 2011 9:56 AM

Video: NBC space expert James Oberg discusses the next phase in U.S. space exploration after NASA retires the shuttle program in June.
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NASA delays last launch of shuttle Endeavour due to malfunction
Fri, Apr 29, 2011 12:54 PM by Space.com
Maintenance and system checks means it will be at least two days until Endeavour is cleared to launch again.
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6 surprising facts about NASA's space shuttle Endeavour
Fri, Apr 29, 2011 10:55 AM by Space.com
Who named the shuttle Endeavour? How much did it cost to build? How did it help put the 'international' in International Space Station?
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Lightning strikes behind shuttle Endeavour in spectacular photos
Fri, Apr 29, 2011 9:41 AM by Space.com
Striking photos taken on the eve of space shuttle Endeavour's final launch show a barrage of lightning that did not damage the spacecraft.
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Shuttle fueled for launch attempt on Friday

Fri, Apr 29, 2011 7:26 AM by Irene Klotz, Reuters

Forecasters said there was a 70 percent chance that weather conditions would be suitable for launch.
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