draymamma: gamma—crucis: The Veil Nebula is a cloud of heated ionized gas and dust in the constellation Cygnus, and makes up the visible portion of the Cygnus Loop, a large but faint supernova remnant, which exploded 5,000-8,000 years ago. Image
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original: https://www.tumblr.com/blog/view/androus-blue/103965407344