Using ESA's XMM-Newton satellite, European astronomers have observed ultraluminous X-ray sources (ULXs) in the galaxy NGC ...

Researchers have succeeded in something that has been pursued since the 1970s: explaining the X-ray radiation from the black hole surroundings. The radiation originates from the combined effect of the ...

The measurable quantity is the entrance surface air kerma/dose. The unit of entrance surface kerma is the gray (Gy), but in dental radiology the dose levels are usually a small fraction of one gray - ...

The V 1298 Tau star system contains four young planets, orbiting close to their parent star, where they are baked in X-ray radiation. Orbiting the young star V 1298 Tau, more than 350 light-years from ...

This increased degree of penetration facilitates the crystallographic analysis of real devices such as lithium-ion batteries and the execution of high-pressure experiments using e.g. diamond anvil ...

Radiation therapy is a time-honored approach to destroying cancer cells that escape the knife, or which are not accessible for surgery. However, it has its risks and limitations. Now a new study, ...

Your eyesight is very important and is something you should guard jealously. Once lost, it is very difficult, and often impossible, to regain your sight. This is why, if you do any kind of work or ...