by Pascale Mollard Agence France Presse PARIS, United States (AFP) — A sleek, subterranean X-ray laser to be unveiled Friday in Germany, by far the most powerful in the world, has scientists in a dozen fields jostling to train its mighty beam on their projects. European XFEL will reveal — and capture in images — secrets at the sub-atomic level, promising breakthroughs in medicine, biology, energy, information technology and chemistry. It will map the molecular […]