Astronomers analyzing archived NASA data have stumbled upon a cosmic event unlike anything seen before—a brief but intense ...

"Have you ever flipped through old photo albums and suddenly found something fascinating hidden in the background of a ...

Chandra X-ray Observatory observations of the Perseus galaxy cluster black hole and M87's jet have been turned into sound by ...

Using ESA's XMM-Newton satellite and NASA's Chandra X-ray observatory, astronomers have observed a young stellar object known ...

The "needle in the haystack" discovery of a powerful explosion from a mysterious unknown object outside our galaxy has ...

Such a dramatic cut to a flagship space telescope still in its prime will be felt across the mission's entire operations, ...

Scientists have seen a powerful explosion from a mysterious, unknown object in space. Researchers do not know where the ...

Wolf 359’s extreme radiation and frequent X-ray flares make life-sustaining atmospheres on nearby planets highly unlikely, ...

Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James ...

A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...

Space scientists have unveiled a cosmic bouquet in time for Valentine's Day. The new image includes data from several ...

A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.