Recently, the Planetary Society called for major changes in US space-exploration plans. Specifically, it recommended bypassing the Moon in favour of Mars. Harrison Schmitt (the only scientist to have walked on the Moon) resigned from the society in protes

An international team of scientists who analyzed data from the Gamma Ray Spectrometer onboard NASA's Mars Odyssey reports new evidence for the controversial idea that oceans once covered about a third of ancient Mars.

How does distilled urine and sweat taste? Not bad, actually.

MIT team concludes that with a careful choice of location, solar energy can provide all the power a colony would need - even in the teeth of the Red Planet's infamous dust storms.

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Space shuttle Endeavour pilot Eric Boe, commander Chris Ferguson, mission specialist's Donald Pettit, and Shane Kimbrough leave the Operations and Checkout Building to prepare for their launch at Kennedy Space Center.

U.S. President-elect Barack Obama faces key decisions for NASA once he takes office.

Astronomers announce the first-ever direct images of exoplanets.

At a talk on the topic of what it will take to find extraterrestrial life, a senior SETI astronomer predicts it could happen within two dozen years.