Using the XMM-Newton X-ray telescope, astronomers have witnessed a supermassive black hole already noted for its mysterious behavior demonstrating another strange phenomenon. The Massachusetts ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of a red dwarf (left) and a white dwarf (center) orbiting each other. . | Credit: ...

WASHINGTON (Reuters) - Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually increasing in frequency that seem to be coming from ...

if you were somehow also in that orbit, would there be significant time-dilation effects relative to earth at that speed? Is this a dumb question? Click to expand... Not a dumb question. It's ...

Astronomers have cracked the case of a mysterious repeating radio signal that has been a mystery since it was uncovered last ...