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

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

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

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 Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

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

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

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

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

By contrast, two older X-ray telescopes, ESA’s XMM-Newton and, especially, NASA’s Chandra X-ray Observatory, both launched in 1999, can produce much higher-resolution images of the intra ...

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