In a study published Wednesday in the journal Nature, Chinese astronomers detail their discovery of a black hole, dubbed LB-1, in the Milky Way with a mass of about 70 times that of the sun. Previously, scientists believed they could only be about 20 times the mass of the sun.
A research team from the Chinese Academy of Sciences used the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) to search for signs of LB-1.
Using LAMOST, the team found stars moving across the sky, seemingly orbiting an invisible object. Follow-up observations with telescopes in Spain and the U.S. led to the discovery of a star about eight times larger than the sun orbiting the black hole every 79 days. The massive star was orbiting a "dark companion" located 15 thousand light-years from Earth.
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