Imagine capturing a portrait of a cosmic giant so massive it could swallow our entire solar system thousands of times over — ...

IXPE has not observed all black holes. This research has only studied 12 black holes, among them Cygnus X-1 and Cygnus X-3, stellar-mass binary black hole systems about 7,000 and 37,000 light-years ...

Scientists at the European Southern Observatory have revealed a photograph showing a close-up image of star WHO G64, a red supergiant.

It’s unclear what may be driving the apparent spike in warming. Possible factors include a drop in sunlight-blocking pollution, changes to cloud cover, and an underwater volcanic eruption that filled ...