nasa

The Webb telescope could revolutionize what we know about the cosmos -- and at $6.2 billion, it better

The darkest, least habitable spots on the lunar surface turn out to be the wettest too

The Curiosity rover heads for the Red Planet -- looking for signs of Martian life

After completing their primary missions, Voyager 1 and 2 are poised to pass from the outermost boundary of the solar system into the truly uncharted regions of interstellar space, and NASA wants them fit for duty when they do

The space agency carves itself up in a bid for jobs and innovation

A new study takes a census of the most dangerous space rocks

Read NASA's blog, "My Big Fat Planet," which chronicles global climate change.

The space agency has come up with a new plan to send humans into space -- but the doubts have already begun

Twin ships on a translunar trip, the NASA GRAIL spacecraft are on their way to the moon for an in-depth study of the lunar surface and of what lies beneath

The Opportunity rover arrives at a crater that could carry clues to ancient biology