NASA managers Monday decided to extend the shuttle Discovery's space station resupply mission by one day to give the combined crews more time to outfit a new U.S. module and, possibly, to stage an out-of-this-world photo op. Read More...

Astronauts Alvin Drew and Stephen Bowen completed a "textbook" six-hour 34-minute spacewalk Monday, installing a backup power cable, stowing a failed coolant pump and carrying out a variety of maintenance tasks. Read More...

Shuttle Endeavour was hauled from its processing hangar to the Vehicle Assembly Building Monday for attachment to an external tank and solid-fuel boosters. The shuttle's 25th and final launch is targeted for April 19. Read More...

Astronauts Alvin Drew and Stephen Bowen plan to install a backup electrical cable between two space station modules, store a failed ammonia pump module and perform general maintenance during a planned 6.5-hour spacewalk. Read More...

Discovery's crew worked through a busy day of robotics and equipment transfers Sunday and geared up for a spacewalk Monday. NASA's Mission Management Team, meanwhile, says the ship's heat shield appears to be in good shape. Read More...

The shuttle Discovery glided to a picture-perfect docking with the International Space Station Saturday, the orbiter's 13th and final linkup with the orbital outpost. Read More...

Foam debris that fell from the shuttle Discovery's external tank during launch Thursday was the result of an understood phenomenon and happened well after the timeframe when debris impacts pose a threat to the shuttle's heat shield, a senior NASA manager said Thursday. Read More...

The Discovery astronauts are working through a routine but busy day in space, highlighted by inspections of the shuttle's nose cap and wing leading edge panels, along with preparations for docking with the space station Saturday (Updated at 12:40 p.m. EST). Read More...

The shuttle Discovery blasted off on its 39th and final mission Thursday, taking off with seconds to spare after a last-minute Air Force computer glitch threatened to derail the launch. Read More...

The shuttle Discovery's crew began strapping in shortly after 1:30 p.m. EST to await launch on the ship's 39th and final mission. There are no technical problems of any significance and forecasters expect good weather for launch at 4:50:27 p.m. Read More...

The European Space Agency's second Automated Transfer Vehicle, loaded with more than seven tons of supplies and equipment, successfully docked with the International Space Station Thursday after an automated approach. Read More...

The shuttle Discovery is on track for blastoff Thursday on its 39th and final mission, a space station resupply flight that features two spacewalks and a final U.S. station module. Read More...

The shuttle Discovery's countdown is proceeding smoothly toward launch Thursday on a space station resupply mission. There are no technical problems of any significance and good weather is expected. Read More...

Running three-and-a-half months late, the repaired shuttle Discovery is poised for launch on its 39th and final mission to deliver supplies, spare parts and a final U.S. module to the International Space Station. Read More...

Engineers at the Kennedy Space Center restarted the shuttle Discovery's countdown Monday, setting the stage for launch Thursday on a long-delayed space station assembly flight. Read More...

The shuttle Discovery's five-man one-woman crew flew to the Kennedy Space Center Sunday to prepare for blastoff Thursday on a space station resupply mission. Read More...

Senior NASA managers attending a flight readiness review Friday at the Kennedy Space Center unanimously cleared the shuttle Discovery for launch Feb. 24 on a long-delayed space station resupply mission. Read More...

A powerful Ariane 5 rocket successfully boosted a European Space Agency cargo ship into orbit Wednesday on a flight to deliver more than seven tons of supplies to the International Space Station. Read More...

Realtime coverage of Russian EVA-28 (space station maintenance; experiment installation/retrieval) Read More...

Launch of a European Space Agency cargo ship bound for the International Space Station was delayed at least 24 hours Tuesday by a last-minute technical snag. The delay could impact the shuttle Discovery's Feb. 24 launch target.
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NASA's Stardust-NExT spacecraft raced past comet Tempel 1 Monday in a Valentine's Day flyby to map out changes in the icy body since another spacecraft encountered the comet in 2005. Read More...

Images from NASA's Stardust-NExT spacecraft, shot as the probe streaked past comet Tempel 1 late Monday, are being posted on the Jet Propulsion Laboratory's website. Read More...

Faced with reduced funding and an uncertain outlook, NASA's $18.7 billion fiscal 2012 budget prioritizes the Obama administration's major goals and objectives but leaves unclear when post-shuttle manned spacecraft might fly. Read More...

Program managers met Friday to review the shuttle Discovery's readiness for launch Feb. 24. Russian managers have been asked to consider a Soyuz fly-around to photograph the station with the shuttle and other spacecraft attached. Read More...

Astronaut Mark Kelly will resume training to command the shuttle Endeavour for its final flight in April, rejoining his crewmates one month after a Tucson shooting spree that left his wife, Rep. Gabrielle Giffords, critically injured. Read More...

NASA's Kepler space telescope has found more than 1,200 possible planets orbiting distant suns, including 68 roughly Earth-sized worlds, in the initial stages of a three-year project to find out how common Earth-like worlds might be. Read More...

With repairs to its external tank complete, engineers the shuttle Discovery was hauled back to launch pad 39A overnight Monday for work to prepare the ship for a delayed blastoff on a space station resupply mission (UPDATED). Read More...