Astronomers spot first possible exoplanet outside our galaxy

Saturn-sized planet candidate has been identified in Whirlpool Galaxy 28m light-years awayA possible Saturn-sized planet identified in the distant Whirlpool Galaxy could be the first exoplanet to be detected outside our home galaxy, the Milky Way.The exoplanet candidate appears to be orbiting an X-ray binary – made up of a normal star and a collapsed star or black hole – with its distance from this binary roughly equivalent to the distance of Uranus from our sun. Continue reading...