Exoplanet May Be Orbiting 3 Stars at Once

A bizarre feature in a distant star system might be caused by the first known planet that orbits three stars. GW Orionis is surrounded by a spiralling disc of gas and dust — typical for a young star system. But this disc is split into rings, and the outer ring is tilted at an angle. Detailed modelling of the system suggests that the best explanation is a giant gassy planet carving out its orbits in its first million years of existence.