The Hubble Space Telescope has imaged a "200,000 light-year-long trail of newborn stars" that may have been left behind by a ...
Caltech’s Katie Bouman explains how the Event Horizon Telescope Collaboration captured the first imager of the Sagittarius A* ...
The black hole appears far too massive for its host galaxy, placing it in a rare category of “overmassive” black holes.
QSO1. It lived just 700 million years after the Big Bang and already had a mass about 50 million times that of the Sun.