A neutron-star crash spotted 3 years ago is still pumping out X-rays. But why?

Three years ago, two neutron stars collided in a cataclysmic crash, the first such merger ever observed directly. Naturally, scientists kept their eye on it — and now, something strange is happening. Astrophysicists observed the star collision on Aug. 17, 2017, spotting for the first time ever signs of the same event in both a […]

Mystery particle may explain extreme X-rays shooting from the ‘Magnificent 7’ stars

More than 400 light-years from Earth, there is a cluster of young neutron stars that are too hot for their age. These stars, known as the “Magnificent Seven,” emit a stream of ultra-high-energy X-rays that scientists haven’t been able to explain.  Now, scientists have proposed a possible culprit: axions, theoretical particles that turn into light […]

Study: X-Rays surrounding ‘Magnificent 7’ may be traces of sought-after particle

IMAGE: An artistic rendering of the XMM-Newton (X-ray multi-mirror mission) space telescope. A study of archival data from the XMM-Newton and the Chandra X-ray space telescopes found evidence of high levels… view more  Credit: D. Ducros; ESA/XMM-Newton, CC BY-SA 3.0 IGO A new study, led by a theoretical physicist at the U.S. Department of Energy’s Lawrence […]

X-rays reveal 1,900-year-old mummy’s secrets — ScienceDaily

The mummified remains of ancient Egyptians hold many secrets, from the condition of the bodies to the artifacts placed within the burial garments. Now a team of researchers has found a way to unwrap those secrets, without unraveling the mummies themselves. Three years ago, researchers from Northwestern University, in preparation for an exhibit on campus, […]