Mar 1, 2018

A Star Passing The Black Hole at The Centre of Our Galaxy Is About to Test Einstein’s Theory

Posted by in category: cosmology

In a few months, astronomers are going to be pointing their telescopes to Sagittarius A*, the supermassive black hole at the centre of our galaxy.

That’s because it’s going to be buzzed by a closely orbiting star — providing another context for testing Einstein’s theory of general relativity.

The star is called S0-2, one of a class of stars known as S-stars (not to be confused with S-type stars) that closely orbit Sgr A*, which has an estimated mass of around 4.3 million Suns.

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