A team of NASA and university scientists has achieved the first definitive detection of methane in the atmosphere of Mars. This discovery indicates the planet is either biologically or geologically active. › Read More and Comment
Discovery rolled to the launch pad Wednesday for its STS-119 mission, targeted to launch on February 12. Commander Lee Archambault and crew will deliver the final set of solar arrays to the space station. › Space Shuttle Section
In this is never-before-seen photograph, the Apollo 7 float, which included the capsule and crew (out of frame), take part in President Richard M. Nixon's...View Image Gallery
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Take a 3D look at NASA's new Lunar Electric Rover
At the end of a turbulent 1968, men from Earth traveled to another world for the first time and sent an inspiring message back home.
Look back on the top exploration and discovery stories of NASA's 50th anniversary year.