Usually when stars are moved to velocities fast enough to eject a them from the galaxy, the supermassive black hole at the centre is responsible, thanks to the slingshot action of its vast gravity.
But in a new study, scientists have traced the trajectory of a compact helium star, US 708, and deduced that it acted as the mass donor in a type 1a supernova pair, which spun US708 to the point of ejection.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.