Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
Six old space hands fly Endeavour one last time to deliver parts and a science experiment to the International Space Station.
The launch of NASA's space shuttle Endeavour is expected to draw up an enormous crowd to Florida's Space Coast to catch what will be the fleet's next-to-last flight before the 30-year-old shuttle program retires for good.
Endeavour was named after Captain James Cook's infamous exploring ship from the 18th century.
Mark Kelly, husband of U.S. Representative Gabrielle Giffords, a Democrat recovering from a near-fatal shooting, commands the Endeavour crew.
American businessman Dennis Tito's mission in 2001 as the first space tourist has had a lasting impact, inspiring a range of private spaceflight investment and activity.
NASA mission managers cleared Endeavour for launch this morning after meeting to review any concerns.
New device can help scientists detect dark matter particles that give hints to where larger masses of dark matter are hiding in the universe.
Budget cuts have forced SETI to suspend operations of its alien-hunting Allen Telescope Array, for now.
The recovering Congresswoman from Arizona is making her first trip away from a hospital since the Jan. 8 shootings.
Physicists propose 'framework' to work through differences between quantum mechanics and general relativity.
A potentially huge tourism market would open up if private spaceflight can reduce its costs to about $340 dollars per pound launched--and that's very possible, according to a recent study.
Tips for those in Florida hoping to catch a good view of the space shuttle Endeavour's final launch to space April 29.
Launch of shuttle Endeavour will be crowded with an expected 500,000 visitors, including President Obama and his family.
Sex in space may not be happening now, but could occur as plans for missions to Mars become reality.
The launch will be the first extended outing she's made from a hospital since she was gunned down outside a Tucson, Arizona, supermarket on January 8.
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