What if Earth and the Moon
Were Hit by Twin Asteroids?
ES2506  What's Missing?
If Earth has been struck by asteroids more often than the moon has, something must be doing a very good job of erasing the evidence.
NASA
STS-035 image

This shuttle photograph of the moon rising over Earth's edge shows several important differences between the two worlds.

 


	

 	

		
			
	

	
	

		 
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