9: Black Widow Pulsar
Pulsars are the remnants of stars that exploded in supernovae. The Black Widow Pulsar got its name because it appears to be eating another celestial body — thought to be a massive planet or brown dwarf.
Credit: X-ray: NASA/CXC/ASTRON/B.Stappers et al.; Optical: AAO/J.Bland-Hawthorn & H.Jones
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