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Race Jackson Wrote:
> Here's the mystery. The big bombardment happened
> around 4 billion years ago - when the moon orbited
> only around 30K kilometers away from the earth,
> unlike today when it orbits an average of 240K
> kilometers away. The earth shielded the near side
> of the moon from asteroid strikes (because it was
> so close to the earth). Since the moon was already
> tidally locked to the earth, how did big asteroids
> manage to hit the near side of the moon, since
> these asteroid strikes occurred when the moon was
> much closer to the earth?

Because most impact craters are not caused by a physical impactor but electrical discharges (the impact may or may not be associated with bolides (exploding asteroids).


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Subject Views Written By Posted
A true lunar mystery 990 Race Jackson 29-Mar-18 23:53
Re: A true lunar mystery 261 carolb 30-Mar-18 00:33
Re: A true lunar mystery 239 Spiros 30-Mar-18 12:31
Re: A true lunar mystery 194 Race Jackson 30-Mar-18 16:14
Re: A true lunar mystery 218 D-Archer 30-Mar-18 13:35
Re: A true lunar mystery 259 carolb 30-Mar-18 16:22
Re: A true lunar mystery 218 carolb 02-Apr-18 17:34
Re: A true lunar mystery 379 Itatw70s 03-Apr-18 16:25

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