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Aug 24, 2015 12:04 PM ET // Jason Major
Europe's XMM-Newton telescope took an X-ray scan of the Milky Way's core, capturing some dazzling high-energy delights.
Jul 8, 2015 02:18 PM ET // Ian O'Neill
A space telescope designed to look into the furthest-most reaches of space at some of the most energetic phenomena in the known universe has, once again, been turned to face our nearest star.
Apr 29, 2015 02:35 PM ET // Ian O'Neill
Astronomers have zoomed into an X-ray emission region immediately surrounding our galaxy's supermassive black hole and stumbled on a mysterious place where stars go to die.
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,
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 →
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