Science Questions

How do we know how much the moon weighs?

Sun, 11th Oct 2009

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Question

Chris asked:

How do we know how much the moon weighs?

Answer

Dave -  We know quite accurately because we’ve sent things to orbit around the moon and the speed at which something orbits around an object is related to its mass and you can do it with a load of maths and workout exactly how much it weighs.

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