However, almost everyone who looks at it can see bright rays, or beams, ... putting white wreaths on a black background makes people see much darker, but equally bright, rays.

Astronomers have discovered extraordinarily powerful X-ray jets blasting from two supermassive black holes that are so ...

The X-rays were emitted by the white dwarf YZ Reticuli 11 h, which is located over 8800 light-years from Earth. Remarkably, the observation was made by chance ... “The most surprising thing was that ...

By Ashley Strickland, CNN (CNN) — Astronomers have detected an astonishing celestial object emitting bright flashes of radio waves and X-rays that last for two minutes and repeat every 44 ...

European scientists used the eROSITA X-ray telescope to observe a white dwarf nova for the first time. Though the event is relatively common, it is extremely difficult to observe due to its brevity.

Using a sensitive, new X-ray telescope, astronomers have identified the origin of the high-energy part of the X-ray background and found that supermassive black holes at the cores of galaxies are ...

Astronomers have discovered incredibly powerful X-ray jets originating from two supermassive black holes that are so ancient ...