Science editor Alan Boyle's Weblog: The first images from NASA's Lunar Reconnaissance Orbiter provide a fresh perspective on the moon, just weeks before the 40th anniversary of the first manned lunar landing.

NASA has tweeted in space, but now one of its astronauts will tweet what no one has tweeted in orbit before: He’ll be sending his Twitter updates in Spanish as well as English.

Scientists say the Red Planet's scant snow falls from clouds that are similar to the thin clouds of ice crystals seen over Earth's polar regions.

In a fresh set of research papers, scientists add perspective to the Phoenix Mars Lander's findings about Martian water and soil.

The company behind the dark Irish beer Guinness will give loyal drinkers a taste of space along with their stout, but only if they win new contest.