Binary system named XTE J1650-500 Credit: NASA/CXC/A. Hobar
Illustration of a black hole and its surrounding disk Credit: NASA
Rossi X-ray Timing Explorer satellite Credit: NASA
April 7, 2008 Using measurements taken by the Rossi X-ray Timing Explorer satellite, NASA scientists have identified the smallest known black hole in the universe. At 3.8 times the mass of our Sun and estimated at only 15 miles in diameter, the black hole known as XTE J1650 is also close to the smallest size thought to be theoretically possible for such an object.
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