X-ray emission from the Cloverleaf seen by XMM-Newton shows the distrubution of gas within a group of galaxies embedded in ...

Now, new observations of one dubbed the Cloverleaf suggest it was created by clashing groups of galaxies. ...

Using NASA's Chandra X-ray Observatory, astronomers have located an exhaust vent attached to a "chimney" of hot gas blowing ...

Detected in galaxy M82—better known as the Cigar Galaxy and one of the easiest to see with a backyard telescope at this time ...

While ESA's satellite INTEGRAL was observing the sky, it spotted a burst of gamma-rays -- high-energy photons -- coming from the nearby galaxy M82. Only a few hours later, ESA's XMM-Newton X-ray space ...

NASA 's X-ray satellite has unveiled a "lucky" discovery, shedding new light on an enigmatic phenomenon in space known as odd ...

NASA noted that researchers previously identified the existence of a "chimney" of hot gas in the Galactic Center thanks to ...

The first images captured by the innovative mission were presented at the 7th workshop of the Einstein Probe consortium in ...

Astronomers have discovered a flare erupting from a highly magnetic "dead star" outside the solar system for the first time.

The BOAT is staunchly in the latter camp. Rings of dust spewed out by the BOAT, as seen by the XMM-Newton Observatory. Image: ESA/XMM-Newton/M. Rigoselli (INAF) The team intentionally waited for ...

In an open letter, a group of astronomers claimed that Chandra “is capable of many more years of operation and scientific ...