An X-ray camera so powerful it can capture images of individual atoms and make movies of chemical reactions has begun operating today.
The X-Ray Free-Electron Laser (XFEL) can flash 27,000 laser beams per second - each one a billion times brighter than that of conventional X-Ray sources.
Scientists from eleven countries will use it to research the molecular composition of viruses and cells, and take three-dimensional images of the universe on a nano-molecular scale.
It will drive forward international research by filming chemical reactions and by investigating the processes occurring deep inside of planets.
Built in an underground facility stretching 3.4km from the German city of Hamburg to the town of Schenefeld, scientists say XFEL "marks the beginning a new era of research in Europe".