Watch an animation of a black hole shooting jets of particles through a "collapsing star at nearly the speed of light" and ...

Only a few dozen of these short-lived binaries exist in the galaxy at a time, making the serendipitous find extremely ...

Astronomers from Bulgaria and Egypt have performed multi-wavelength observations of a well-known blazar designated S5 0716+714. Results of the observational campaign, published June 23 in the Monthly ...