Einstein was right about Black Holes?

A star surrounding the giant black hole in the Milky Way proves Einstein was right!

Einstein was right about Black Holes?

The very first indication that the gravitational principle was right for Albert Einstein has recorded a repeated presence; last time around a super-massive black hole. In 1915, Einstein discovered that a peculiar quirk in Mercury’s orbit was clarified by his newly developed general theory of relativity. Now, that same effect has been found in the orbit of a star of the huge black hole at the heart of the Milky Way, researchers in Astronomy & Astrophysics with the GRAVITY collaboration report April 16.

The star, which named S2, is part of a stellar entourage circling the main black hole of the Milky Way. Researchers have been observing the elliptical motion of S2 round the black hole for decades. Recently, the researchers used S2 observations to describe another consequence of general relativity, the reddening of the light of the star due to what is called gravitational redshift.

Now, the ellipse has been determined to rotate over time, defined as Schwarzschild precession. According to general relativity, the precession is the result of the space time warping caused by massive bodies. Until Einstein came along, a similar precession in Mercury's orbit stumped scientists.

Although scientists had not discovered a case where general relativity breaks, researchers are looking for some flaws in principle that might relate to a modern, strengthened gravitational concept. The latest research shows that, even in the extreme gravitational world surrounding a supermassive black hole, Einstein's theory rechecks out once again.