We still don’t know where the first interstellar asteroid came from
Clues from ‘Oumuamua’s speed and trajectory lead to answers all over the sky map
ALIEN ASTEROID This artist’s representation of interstellar asteroid ‘Oumuamua shows its unusual shape: 400 meters long and just about 40 meters wide. No asteroids in the solar system are shaped like that.
M. Kornmesser/European Southern Observatory
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