Space

Organic molecules discovered in Orion Nebula

China to start space station construction next year

Lockheed Martin designs world's largest heat shield

Astronomers use galaxies as lenses

Aftershock: Chilean quake shortened Earth days

NASA radar finds ice at moon's north pole

Raytheon designs advanced GPS controls

Planet torn apart by its own tides

Cassini flyby reveals multiple ice geysers on Saturn moon