Interstellar Objects

An interstellar object is an astronomical object (such as an asteroid, a comet, or a rogue planet, but not a star) in interstellar space that is not gravitationally bound to a star.

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Multiple Interstellar Objects Have Entered Our Solar System, Study Finds

A Few Interstellar Objects Have Probably Been Captured

Interstellar objects might have crashed onto the moon

Interstellar objects might have crashed on to the moon

Impacts From Interstellar Objects Should Leave Very Distinct Craters

Vera Rubin Observatory Should Find 5 Interstellar Objects a Year, Many of Which we Could Chase Down With Spacecraft