Most experienced US spacewalker retires

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.

NASA budget will axe Mars deal with Europe: scientists

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.

Flights rerouted as massive solar storm slams Earth

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.

Students rename NASA moon probes Ebb and Flow

A pair of unmanned NASA spacecraft that are orbiting the Moon were renamed Ebb and Flow on Tuesday by a middle school class in Montana, the US space agency announced.

NASA in high gear for Mars rover launch

The US space agency is poised to launch the most powerful and advanced robotic rover ever built to explore Mars and hunt for signs that life may once have existed on the red planet.

NASA rover launch to Mars delayed to Nov 26

The US space agency has postponed by one day its plan to launch the biggest rover ever to Mars, with the liftoff of the Mars Science Laboratory now set for November 26.

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