Gaia Discovers a Mysterious New Type of Black Hole – And Two Are Lurking in Earth's Cosmic Backyard

ESA’s Gaia mission has helped discover a new kind of black hole. The new family already has two members, and both are closer to Earth than any other black hole that we know of. A team of astronomers studied the orbits of stars tracked by Gaia and noticed that some of them wobbled on the sky, as i

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