Thursday, July 21, 2005

'Cosmic Botox' bashes asteroid wrinkles away

New Scientist Breaking News - 'Cosmic Botox' bashes asteroid wrinkles away

I never considered that larger meteor impacts could set an asteroid ringing, and the continuing internal reflection of these seismic waves, within the body of the asteroid could vibrate regolith on the surface, and inside craters to give it a smoother appearance.
In fact, some of the craters on the asteroid Eros, may have been entirely formed within the soil-like regolith layer, (possibly 100 meters deep in this case) and therefore totally collapsed, when another impact set the asteroid to vibrating.

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