Solar system's shield may be leaking

The heliosphere, which acts as a shield for the solar system, is changing faster than previously thought and may be leaking cosmic rays, researchers say. Though the changes are far from Earth, they could pose hazards for humans attempting longer-distance spaceflights.

Guenter Wendt dies at 86; storied overseer of early NASA space flights

He invented and managed the White Room atop the launch tower where astronauts prepared for takeoff on the Mercury, Gemini, Apollo and Skylab projects. A legendary figure in the U.S. space program, he was gregarious and gentlemanly but dictatorial in his focus on safety.

Large Hadron Collider rewards scientists watching at Caltech

NASA's moon crash is no spectacle, but could be a success

For Mars rover Spirit, it's do or die

The dark side of space about to be illuminated

Rutan and Branson make a giant leap for space tourism

Large Hadron Collider roars to life

The universe's past, in close-up

'The moon is alive,' NASA says after water discovery