U.S. astronomer using NASA’s Wide-field Infrared Survey Explorer and Spitzer Space Telescope has discovered WISE J085510.83-071442.5 (WISE 0855-0714 for short) – the fourth closest system to our Sun and the coldest brown dwarf yet seen in the known Universe. This artist’s impression shows the brown dwarf WISE 0855-0714. The color of the brown dwarf in this image is arbitrary; it would have different colors when viewed in different...
