Image Credit: M. Hanna & NOAO/AURA/NSF; Inset: R. Kotulla (University of Wisconsin) & WIYN/NOAO/AURA/NSF

Animation of asteroid mozing across sky

A Familiar-Looking Messenger from Another Solar System

The visit of the interstellar interloper U1, recently spotted streaking through the Solar System, gives the people of Earth their first chance to study up close an object from another planetary system. Observations with the WIYN telescope at Kitt Peak reveal that despite its foreign origins, U1 appears similar to asteroids in our Solar System. The result supports the long-held view that our Solar System once ejected its own flotilla of messengers like U1 out into interstellar space.

Read more in NOAO Press Release 17-06.

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