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The New York Times

Is There a Black Hole in Our Backyard?

11 Sep 2020, 09:00 UTC
Is There a Black Hole in Our Backyard?
(200 words excerpt, click title or image to see full post)

An artist’s concept of Planet Nine, a yet-unobserved object thought to orbit 20 billion miles from the sun. Some astronomers have suggested that it may be a black hole the size of a Ping-Pong ball.

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