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Sagittarius A* Black Hole Nears Cosmic Speed Limit #space #sciencetime #blackhole

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Science Time
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Published on 20 Nov 2023 / In News & Politics

Sagittarius A* Black Hole Nears Cosmic Speed Limit #space #sciencetime #blackhole Subscribe to Science Time: https://www.youtube.com/sciencetime24 The supermassive black hole at the Milky Way's center, Sagittarius A* (Sgr A*), is spinning near the cosmic speed limit. NASA's Chandra X-ray Observatory has revealed its astonishing rotational speed, measuring between 0.84 and 0.96 on a scale where 1 represents the maximum. This rapid rotation, approaching the speed of light, warps space-time, creating an ergosphere that drags along nearby objects, a phenomenon known as "frame dragging." Unlike solid celestial bodies, black holes are regions of space-time without physical surfaces, making their spin, governed by angular momentum, unique. This spin causes gravitational lensing, bending light's path near the black hole, and can even form light rings. Understanding a black hole's spin is vital for comprehending its astrophysical impact. This finding about Sgr A* not only reshapes our understanding of black hole dynamics but also sheds light on the intricate processes shaping our galaxy and the universe.

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