Using NASA’s Chandra X-ray Observatory, astronomers have made the first detections of X-rays from Pluto. This X-ray emission comes from interaction between the dwarf planet’s atmosphere and the solar wind. The first detection of Pluto in X-rays has been made using NASA’s Chandra X-ray Observatory. The main panel in this graphic is an optical image taken from New Horizons on its approach to Pluto, while the inset shows an image of Pluto in X-rays...