chalkboard Published June 29, 2014 at 4272 × 2848 in Our own Milky Way and the Andromeda Galaxy ← Previous Next → Close-up of an arrow on a chalkboard Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Like Loading...
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