Scientists generate world`s sharpest X-ray beam

Scientists have generated a X-ray beam with a diameter of barely 5 nanometres, which is ten thousand times thinner than a human hair at the X-ray light source PETRA III, at DESY.

X-rays reveal why Moon has no active volcanoes

Using powerful X-rays to measure lunar rock densities, scientists have found why our Moon, contrary to Earth, has no active volcanoes.