Research by a Michigan State University scientist sheds new light on how stars and galaxies were formed back in the early days of the universe – some 13 billion years ago.
Work by Brian O'Shea, an MSU assistant professor of physics and astronomy, and two colleagues indicates that the universe's earliest inhabitants, known as Population III stars, were not nearly as massive as originally thought. In addition, they argue that many of these stars actually formed in binary systems, that is, pairs of stars that orbit a common center.