A massive spiral galaxy with a giant black hole is shooting huge energy jets, something scientists thought only elliptical ...

A high school student in New York has stumbled onto a massive discovery — a cosmic light echo possibly spanning twice the width of the Milky Way. While scanning space for signs of dying stars, 17-year ...

"Could our galaxy one day experience similar high-energy phenomena that will have serious consequences for the survival of ...

An international team of researchers used multi-wavelength observations of active galactic nuclei to study how black holes ...

Astrophysicists have teased a hellish potential future in which life on Earth is extinguished by deadly radiation from the ...

"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time ...