ScienceDaily: Astronomy News

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• Evidence of jet in Milky Way's black hole
• Rediscovered Apollo data gives first measure of how fast moon dust piles up
• Secrets of Mars' birth revealed from unique meteorite

Evidence of jet in Milky Way's black hole Posted: 20 Nov 2013 04:24 PM PST Astronomers have long sought strong evidence that Sagittarius A*, the supermassive black hole at the center of the Milky Way, is producing a jet of high-energy particles. Finally they have found it.

Rediscovered Apollo data gives first measure of how fast moon dust piles up Posted: 20 Nov 2013 11:38 AM PST Scientists used rediscovered Apollo data to make the first determination of how fast lunar dust accumulates. It builds up unbelievably slowly by the standards of any Earth-bound housekeeper -- just fast enough to form a layer about a millimeter (0.04 inches) thick every 1,000 years. Yet, that rate is 10 times previous estimates. It's also speedy enough to pose a serious problem for the solar cells that serve as critical power sources for space exploration missions.

Secrets of Mars' birth revealed from unique meteorite Posted: 20 Nov 2013 10:35 AM PST As NASA prepares to launch a new Martian probe, a Florida State University scientist has uncovered what may be the first recognized example of ancient Martian crust. Using a powerful microprobe scientists dated special crystals within the meteorite -- called zircons -- at an astounding 4.4 billion years old.

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