5 years ago
Astronomers watch as a black hole's jet wobbles like a top
Back in 2015, the black hole V404 Cygni got the attention of astronomers all over the globe when it suddenly brightened for two weeks. The outburst happened as the black hole began gobbling up material from a star that orbits it once every six days. As the material swirled into the black hole, it heated up enough to glow brightly. Then, the black hole starting shooting some of that material far out into space as bright jet beams. When astronomers took a close look at the jets, they realized they were wobbling like a top.
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