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Late Heavy Bombardment

Artwork showing the Late Heavy Bombardment

BBC Earth - Timeline - The Late Heavy Bombardment and the early Earth

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from BBC News

Grail satellites show Moon's violent history

The scale of the battering the Moon received early in its history has been revealed in remarkable new data from two NASA satellites. Ebb and Flow - together known as the Grail mission - have mapped the subtle variations in gravity across the surface of the lunar body. Reds correspond to mass excesses which create areas of higher local gravity, and blues correspond to mass deficits which create areas of lower local gravity.

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from Science News

Moon rocks may have misled asteroid bombardment dating

Discrepancies in moon rock dating muddy Late Heavy Bombardment debate.

The Late Heavy Bombardment (wide).PNG

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4.0–3.8 billion years ago, during the Late Heavy Bombardment, Asteroids and comets bombard the Earth in record numbers and with overwhelming violence. As the bombardment tapers off, the Earth resumes cooling, oceans reappear, and a crust again covers the planet. Convection currents swirling in the mantle begin to break up the crust and force the pieces to collide, split, and merge. (pictured: Marília Meteorite, which fell in Marília, São Paulo state, Brazil, on October 5, 1971)

Late Heavy Bombardment - Wikipedia, the free encyclopedia

from Mail Online

Could the origins of life be buried on the MOON?

Scientists at Imperial College London claim the molecules and cells were flung towards the moon during the Late Heavy Bombardment when Earth was bombarded by asteroids.

Late Heavy Bombardment (lunar cataclysm): hypothetical event around 4.1 to 3.8 billion years ago; a large number of impact craters on the Moon would have formed & also on Earth, Mercury, Venus & Mars; late in the Solar System's accretion period when Earth & the other rocky planets formed & gained most of their mass; new research casts doubt on this theory