Extragalactic Exoplanet Found Hiding Out in Milky Way
"Some extrasolar planets are truly out of this world.
Astronomers have for the first time discovered a planet in the Milky Way that came from another galaxy.
The planet, which has a mass of at least 1.25 Jupiters, orbits an elderly star that was ripped from a small satellite galaxy some 6 to 9 billion years ago.
Johny Setiawan and Rainer Klement of the Max Planck Institute for Astronomy in Heidelberg, Germany, describe the finding online November 18 in Science..."
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