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Why interstellar object 'Oumuamua' — a visitor from another solar system — moved so strangely

A strange comet-like object discovered more than five years ago was the first known visitor from another solar system. Its movement through space was so odd that scientists have struggled to explain it.

NPR’s Nell Greenfieldboyce reports.

This article was originally published on WBUR.org.

Copyright 2023 NPR. To see more, visit https://www.npr.org.

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