Known as the Witch’s Broom, the Western Veil Nebula is part of a supernova remnant that stretches more than six moon widths across the night sky Robert J. Vanderbei / National Geographic Tweet Astronomers have used all sorts of tricks over the years to try to convey the mind-boggling scale of the universe to us ordinary folks.
Thursday, June 30, 2011
For the Universe, Size Matters
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For the Universe, Size Matters
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