If Earth had the same diameter as the head of a pushpin, how much would all of the other celestial bodies in the universe need to shrink to scale proportionally? It’s a fun, ridiculous question and ...
A Reddit post has helped to put the true size of the asteroid moonlet Dimorphos—best known as the target of NASA's DART mission on September 27—into perspective by comparing it to a human. Dimorphos ...
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