In a $2.5 billion gamble, NASA's Mars Science Laboratory rover will attempt a pinpoint landing on the red planet overnight Sunday to search for the chemical building blocks of life and signs of past or present habitability. Read More...

NASA's Mars Science Laboratory will rely on a rocket-powered "sky crane" to lower the car-size rover to the surface, a make-or-break maneuver that solves a host of daunting technical challenges. Read More...

During the Curiosity rover's nail-biting descent to Mars, engineers will rely on an aging NASA science satellite to relay telemetry back to Earth that will confirm success or failure in near realtime. Read More...

An unmanned Russian Progress supply ship successfully re-docked with the International Space Station Saturday after an aborted approach last week during tests of a new rendezvous antenna.
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An unmanned Japanese cargo ship carrying more than five tons of supplies and equipment was attached to the International Space Station early Friday, one week after launch from southern Japan. Read More...

A rocket firing Tuesday nudged NASA's Mars Odyssey spacecraft back into position to relay data from the $2.5 billion Mars Science Laboratory directly back to Earth during the rover's descent to the surface Aug. 3. Read More...

An attempt to re-dock a Russian Progress supply ship with the International Space Station was aborted by the ship's flight computer Monday night when a new rendezvous system failed to operate as expected. Read More...

Sally Ride, the first American woman in space and an advocate for science education, died July 23 after a bout with pancreatic cancer. She was 61. Read More...

An unmanned Japanese rocket carrying more than five tons of supplies, science gear and other equipment vaulted smoothly into orbit late Friday, setting off on a weeklong flight to the International Space Station. Read More...

A Russian Soyuz ferry craft glided to an automated docking with the International Space Station early Tuesday, bringing three fresh crew members to the lab complex two days after launch from Kazakhstan.
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Problems with a NASA satellite in orbit around Mars could delay confirmation of a successful landing by the agency's Mars Science Laboratory rover, but engineers say that will have no impact on the actual descent. Read More...

A Soyuz spacecraft carrying a Russian commander, a NASA flight engineer and a Japanese astronaut -- all veteran space travelers -- blasted off late Saturday (U.S. time) and set off after the International Space Station. Read More...

Engineers are making final preparations for launch of a Russian Soyuz spacecraft early Sunday to ferry an all-veteran U.S.-Russian-Japanese crew to the International Space Station. Read More...

The first space-bound Orion capsule, the centerpiece of NASA's post-shuttle exploration program, was officially unveiled at NASA's Florida spaceport Monday. An unmanned test flight is planned for 2014.
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Three station fliers strapped into a Soyuz ferry craft and plunged back to Earth early Sunday, landing in Kazakhstan to close out a six-month stay aboard the International Space Station.
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