The Chandra X-ray Observatory was launched on July 23, 1999 aboard Space Shuttle Columbia. See 25 'never-before-seen' images ...

"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 ...

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

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

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

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

The "needle in the haystack" discovery of a powerful explosion from a mysterious unknown object outside our galaxy has excited astronomers. It went unnoticed for years within a vast, two decade-long ...

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

Wolf 359, a red dwarf star just 7.8 light-years away, could host planets, but extreme X-ray and ultraviolet radiation make ...

NASA’s Chandra X-ray Observatory released 25 new images. Since Chandra’s launch on July 23, 1999 it discovers exotic new phenomena and examines old mysteries of our universe.

The research team, led by Steven Dillmann of Stanford University was scouring decades-old data from NASA's Chandra X-ray Observatory when it spotted a powerful (but brief) blast of X-rays coming ...