In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...

"Our discovery about jet formation in stellar-mass black holes may provide a universal key to understanding these phenomena. While these binary systems—where a black hole orbits a normal star—differ ...

The international CTAO LST Collaboration has released remarkable findings from observations of GRB 221009A—the brightest gamma-ray burst (GRB) ever recorded. The results were published in The ...

Wonder Woman's invisible aircraft on display, next to the Bell X-1, in its jet formation at the Smithsonian’s National Air and Space Museum, April 1, 2015. On loan from The Museum of Flight. Photo ...

Scientists have discovered key conditions needed for a stellar black hole to create plasma jets. Their findings show that when superheated gas material experiences a rapid shrinkage towards the black ...