Albert Einstein’s theory of general relativity has proved itself right again. After monitoring it for nearly three decades, researchers have discovered a hidden transition in the galaxy of a known star near a giant black hole in the center of the Milky Way — and the movement fits Einstein’s idea precisely. Einstein is right again
The star, known as S2, follows a 16-year elliptical orbit. It approached — within 12.5 billion miles — and reached our black hole, Sagittarius A *, last year. If Isaac Newton’s description of gravity is true, the S2 should proceed the same way across space as in its previous cycle. But it didn’t.
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Instead, it has followed a slightly divergent path, with its axle shifting slightly, the group that uses the European Southern Observatory’s Large Telescope reports today in Astronomy & Astrophysics. This practice, known as the Schwarzschild precession, will, in time, cause S2 to trace a spirograph similar to a flower pattern in space as a general prediction.
As well as other strong correlational tests, the researchers said that their detailed S2 tracking would allow them to study how many invisible objects, including the black object and the small black holes, around the Sagittarius A *. And that can help them understand how behemoths grow and emerge.
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