[PIF]

Or just read the Three Body Problem by Cixin Liu.

Interesting but so far unexplained aspect is that it apparently entered the system at 26 kilometers per second, much slower than its exit speed of 87KmS, but did not pass close enough to any large body/planet to have picked up that speed. See: "Interstellar" Asteroid Raises Mysteries

[Boogieman]

Didn’t it pass pretty close to the sun???