Earth's nearest supermassive black hole came alive 200 years ago
Image Credit: newstrack
Sagittarius A* (pronounced 'Sagittarius A star'), the supermassive black hole at the heart of the Milky Way, woke up only about 200 years ago, as per new findings from NASA's IXPE (Imaging X-ray Polarimetry Explorer) telescope. Located over 25,000 light-years from Earth, Sagittarius A* is our nearest supermassive black hole and its mass is estimated to be millions of times that of our Sun.