Originally posted on National Post | News:
LOS ANGELES — The moon took quite a beating in its early days, more than previously believed, scientists reported Wednesday.
This surprising new view of the moon comes from detailed gravity mapping by twin NASA spacecraft, which slipped into orbit around the celestial body earlier this year to peer into the interior.
Researchers have long known that the moon and rocky planets — including the Earth — suffered heavy bombardment from asteroids and comets during their formative years billions of years ago. Now they are just starting to realize the extent.