Fast X-ray transients (FXTs) are blasts of X-rays from distant galaxies. Astronomers have detected FXTs since the 1970s, but ...

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

Astroboffins spotted the aftereffects of the event on November 23, 2023, when they detected emissions from two huge black ...

Here are 8 incredibly beautiful and mesmerizing deep space images captured by NASA’s Hubble Space Telescope, showcasing the ...

A new study of a star undergoing the throes of a supernova death has revealed that bursts of X-radiation known as fast-X-ray ...

That failure turned out to be a scientific jackpot. By watching the event unfold over days and weeks, astronomers confirmed that the FXT was tied to a Type Ic broad-lined supernova, SN 2025kg, likely ...

Two powerful telescopes examined the brightest gamma-ray burst ever observed by humans, hundreds of days after the burst was first detected. What did they see?

Opinion Rachael Ray: SNAP is about more than food Congress’s proposed cuts could mean millions of children go hungry and lose the future they deserve.

Credit: Fabio Lovino / ©HBO / Courtesy Everett Collection When you combine caftans and cocktails, you get “caftailing,” which is reigning as summer’s biggest entertaining trend. For daytime summer ...

The young moon leaves the sky dark for skywatchers to see Mercury next to our lunar companion on June 27.