Subtle variations in the star’s brightness suggest it once collided and merged with another star, an explosive event that ...
James Webb Space Telescope observes mid-infrared flare from Milky Way’s central black hole, Sagittarius A*, revealing flare evolution, synchrotron cooling, and magnetic field measurements.
For years, the center of our galaxy has been painted as a place where stars go to meet their end — a region ruled by Sagittarius A*, a black hole so massive that its gravity can stretch, tear, and ...
A black hole, clocking in at 100 billion tons, would do less damage than a 0.22-calibre round, said physicist Robert Scherrer.