X-Ray Observations of Milky Way’s Supermassive Black Hole Reveal Unusual Activity

A long monitoring campaign of the Milky Way’s black hole, called Sagittarius A*, has revealed some unusual activity. Typically relatively quiet, the 4-million-solar-mass black hole had an increase in X-ray flares in 2014. The timing of this surge coincided with the passage close to Sagittarius A* of a mysterious object called G2. By combining information [...] —> Read More