Binary stars keep masquerading as black holes
What scientists thought was a star orbiting a black hole turned out to be two stars instead
![illustration of a black hole and a warped red giant star](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/03/033122_lk_black-hole_feat.jpg?fit=1030%2C580&ssl=1)
Astronomers originally thought that the “Unicorn” star system held a black hole and a warped red giant star, as shown in this illustration. But now researchers have found that the black hole is actually a second star.
Lauren Fanfer/Ohio State Univ.