We've been so engrossed in coverage of 3I/ATLAS that we nearly failed to note another comet currently in Earth's skies. This ...

A team of astrophysicists has unveiled how colossal stars thousands of times more massive than the Sun shaped the earliest ...

Analysis suggests that the most luminous burst of light ever detected from a black hole — a fireworks show that was, at its peak, more than 10 trillion times brighter than the Sun — flared up as the ...

Scientists have spotted the brightest flare yet from a supermassive black hole that shines with the light of 10 trillion suns ...

The James Webb Space Telescope's Near-Infrared Camera (NIRCam) reveals a stunning view of star-forming region Sagittarius C ...

A giant star that is still being consumed by a supermassive black hole may have caused the largest flare of its kind ever seen, astronomers say.

The enormous outburst was likely caused by an unfortunate star venturing too close to a supermassive black hole ...

The new report comes as many world leaders prepare for the U.N.'s COP30 climate summit in Brazil next week — for reference ...

A peculiar object discovered by the James Webb Space Telescope just 700 million years after the Big Bang could reveal the ...

A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at ...

Images of black holes are more than just fascinating visuals: they could serve as a “testing ground” for alternative theories of gravity in the ...

Researchers are using black hole “shadow” images to test whether Einstein’s relativity remains unshakable. With ...