All Items Tagged

“x-rays”

Mar 16, 2015 08:18 PM ET // Ian O'Neill
GK Persei is the site of a powerful stellar explosion over 100 years ago that continues to shape surrounding space to this day.
Feb 18, 2015 01:05 PM ET // Ian O'Neill
It has long been assumed that the size of a supermassive black hole in a galaxy's core is intimately related to the number of stars that galaxy contains -- but it might not be that simple.
Jan 13, 2015 12:00 PM ET // Calla Cofield, SPACE.com
The giant black hole at the center of the Milky Way galaxy recently spit out the largest X-ray flare ever seen in that region.
Dec 22, 2014 03:12 PM ET // Ian O'Neill
NASA's Nuclear Spectroscopic Telescope Array has turned its gaze from distant black holes and focused on our sun, producing the most sensitive measurement of high-energy solar X-rays ever achieved.
Dec 19, 2014 12:56 PM ET // Jason Major
This image, a composite of x-ray, infrared, and optical data, shows the most massive galaxy cluster ever discovered at its distance: a staggering 9.6 billion light-years away, altogether containing the equivalent mass of 400 trillion suns. Continue reading →
Dec 12, 2014 11:35 AM ET // Mike Wall, Space.com
Astronomers may finally have detected a signal of dark matter, the mysterious and elusive stuff thought to make up most of the material universe.
Oct 9, 2014 07:00 AM ET // Charles Q. Choi, SPACE.com
A black hole is eating a star faster than scientists had thought was possible, and it's unleashing unusually bright X-ray signals that may help scientists understand a group of weird, superbright objects in deep space.
Aug 12, 2014 12:49 PM ET // Ian O'Neill
Through the analysis of light from distant galactic clusters, astronomers have detected a mysterious signal that they're having a hard time explaining. Continue reading →
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