NASA is planning a mission to study the Moon's fragile atmosphere--before it's too late.

NASA's IBEX spacecraft has discovered a vast, glowing ribbon at the edge of the solar system. One mission scientist calls the discovery "shocking" and says theorists are "working like crazy" to explain the finding.

NASA scientists have figured out how to extract water from lunar soil. Their approach is as easy as using a microwave oven.

Archeologists are using NASA satellites and supercomputers to crack the mystery of the ancient Maya. New findings suggest the Maya may have played a key role in their own downfall.

NASA spacecraft are measuring record-high levels of cosmic rays--a side-effect of the deepest solar minimum in nearly a century. This development could have implications for the amount of shielding astronauts need to take when they explore deep space.