A NASA spacecraft is orbiting a tiny asteroid, and that’s a big deal


a drawing of a spacecraft orbiting a small asteroid

It’s not easy to just cozy up to a rock barely longer than the Empire State Building.

NASA’s OSIRIS-REx spacecraft has finally entered asteroid Bennu’s orbit, after more than two years of hurtling through space toward the rock.
via Popular Science "http://bit.ly/2BZ8PTD"

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