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The true scale of the largest objects in the universe

Imagine shrinking Earth to the size of a small ball to reveal just how vast the Universe is. If it were 12 centimeters wide, ...
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Asteroid comparison chart, Part II

I've been meaning to let y'all know about this: a while back I wrote how Emily Lakdawalla of the Planetary Society blog put together a scaled asteroid/comet size comparison chart. Well, she's updated ...