The debris from a stellar explosion from 2,200 years ago still shines brightly in x-rays -- even though it shouldn't Continue reading â†’
Astronomers make the first direct observations of a "missing link" between two stages of neutron star evolution. Continue reading â†’
It's a case of cosmic whodunit: What happened to all the external stars in M60-UCD1, an ultra-compact dwarf galaxy? They were stolen. Continue reading â†’
An elderly neutron star appears to be hiding a surprisingly powerful magnetic field. And it's probably not the only one of its kind! Continue reading â†’
Ever tried to comprehend the magnitude of the cosmos and some of its most energetic processes? If so, the X-ray halo around the merging galaxies known as NGC 6240 may just blow your mind. Continue reading â†’
X-ray evidence for the most massive black holes in our universe has been discovered -- but they're not supermassive, they're ULTRAmassive.
Some relationships are doomed from the beginning, and the same can be said of some planetary systems.
Our typically mild-mannered black hole recently flared up, and NASA's new X-ray space telescope saw all the action.
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