After monitoring stellar orbits around
Sagittarius A** (the supermassive black hole in center of the Milky Way) for 16 years, scientists estimate the object's mass at 4.31 million solar masses.
Like ballerinas pirouetting around an invisible leader, a collection of stars orbits our galaxy's gravity sink, or black hole. New infrared images of the cosmic dance confirm that this supermassive black hole weighs as much as 4 million suns.
Sagittarius A*, a compact radio source at the center of the Milky Way, is proved to be a supermassive black hole. 2005-11-3 (Context: Milky Way, Sagittarius A*, supermassive black hole)
A study published to the journal "Nature" finds dozens of potential stellar mass black holes in the Galactic Center, suggesting there may be as many as 20,000 orbiting the supermassive black hole Sagittarius A*. 2018-04-4 (Context: Sagittarius A*, supermassive black hole)
Astronomers say they have observed Albert Einstein's theory of gravitational redshift for the first time while observing a star known as S2 interact with a supermassive black hole using the Very Large Telescope (VLT). 2018-07-26 (Context: supermassive black hole)
Scientists using data from the Chandra X-ray Observatory discover new exoplanets in galaxies beyond the Milky Way for the first time. 2018-02-5 (Context: Milky Way)
A study published in "Nature" and the "Astrophysical Journal Letters" describes the discovery of the most distant supermassive black hole ever, around 13.1 billion light years away. 2017-12-6 (Context: supermassive black hole)