Moon wears dusty cloak

Old data from Apollo missions stir up debate about lunar dust

By Meghan Rosen, 11:44 AM December 3, 2013

Beware of lunar dust bunnies. Moon dust may pile up far more quickly than scientists once thought, and the claim is churning up some controversy. Powdery particles resting on the moon’s surface could form a layer up to 1 millimeter thick every 1,000 years, according to a new analysis of old data.

The estimate relies on data dug up from the Apollo missions of the 1960s and 1970s.

“It’s pretty remarkable that we’re still getting results out of 40-year-old data,” says physicist James Gaier of NASA...

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