Brown dwarfs: too small to be stars, too big to be planets. Only discovered in the 1990s, these in-between cosmic objects aren’t big enough to burn as hot and bright as a true star, instead usually giving off a warm dim glow. In new research published today in Science, a team of astronomers report the detection of a surprising substance in a brown dwarf known as Wolf 1130C: a chemical called phosphine, which has been the focus of controversial claims for evidence of life of Venus. However, the..