A team of researchers spent almost eight years collecting observations of a binary star system to build a three-dimensional model which supports the theory that the two stars formed separately and came together later, rather than forming from the same disk, as the researchers’ 2019 paper suggested. Astronomers think at least 90% of massive stars exist in binary or higher-order multiple systems, but… The post New observations contradict an earlier theory of how a binary star formed appeared first on Research & Development World .