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Found: first planet from another galaxy

发布时间:2019-03-07 13:17:01来源:未知点击:

THE first example of a planet formed outside our galaxy has been spotted – inside our galaxy. The planet was discovered by Johny Setiawan of the Max Planck Institute for Astronomy (MPIA) in Heidelberg, Germany, and colleagues. It has 1.25 times the mass of Jupiter and orbits a star called HIP 13044, part of a group of stars thought to have been captured by the Milky Way between 6 billion and 9 billion years ago (Science, DOI: 10.1126/science.1193342). “This cosmic merger has brought an extragalactic planet within our reach,” says team member Rainer Klement,