Researchers at the University of Nebraska-Lincoln (UNL) and several Russian colleagues have made significant strides toward coherent, three-dimensional x-rays that could lead to real-time three dimensional medical imaging. The scientists focus an optical laser into concentrations of gas, causing them ...

NASA has recently presented its “Solar Probe Plus” mission, which aims to send a spaceship to the Sun. At this stage a heat-resistant spacecraft is being designed; its goal will be to plunge deep into the Sun’s atmosphere in order ...