Astronomers and novice star-gazers worldwide trained their eyes and telescopes on the skies Wednesday for the last chance this lifetime to observe Venus track a near seven-hour path across the Sun.
US company SpaceX's Dragon cargo ship is preparing to make its return journey to Earth after a landmark mission to the International Space Station, NASA and SpaceX representatives said Wednesday.
Competition is vital to the race among private companies to replace the space shuttle, NASA said Thursday, after Congress called for the US space agency to fund a single company.
At sunrise in some parts of China and Japan and by sunset in the western United States, a partial solar eclipse is set to slink across a narrow swath of the Earth on May 20 and 21.
A NASA astronaut who spent more hours walking in space than any other American and also set a record for the longest spaceflight mission has retired to join the private sector, the US space agency said Monday.
Rovio's Angry Birds are taking their battle against the egg-stealing pigs into space and NASA is giving them a boost.
The United States will scale back Mars exploration under a proposed budget by President Barack Obama released Monday that has some scientists fuming over the risk of a NASA brain-drain.
US President Barack Obama's budget proposal to be submitted next week for 2013 will cut NASA's budget by 20 percent and eliminate a major partnership with Europe on Mars exploration, scientists said Thursday.
NASA is seeking friends for a new game the US space agency launched on Facebook.
Solar radiation from a massive sun storm -- the largest in nearly a decade -- collided with the Earth's atmosphere, prompting an airline to reroute flights and skywatchers to seek out spectacular light displays.