Why astrophysicists think there's a black hole in our solar system
Insider
2019-12-05
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In 2016, astrophysicists Konstantin Batygin and Mike Brown noticed unusual gravitational activity in the outer solar system. They speculated this activity was from a ninth planet situated in the Kuiper belt. But now, astrophysicists James Unwin and Jakub Scholtz propose Planet 9 isn't a planet but actually a primordial black hole.
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