Signs of first planet found outside our galaxy
Astronomers have found hints of what could be the first planet ever to be discovered outside our galaxy.
Nearly 5,000 "exoplanets" - worlds orbiting stars beyond our Sun - have been found so far, but all of these have been located within the Milky Way galaxy.
The possible Saturn-sized planet discovered by Nasa's Chandra X-Ray Telescope is in the Messier 51 galaxy.
This is located some 28 million light-years away from the Milky Way.
This new result is based on transits, where the passage of a planet in front of a star blocks some of the star's light and yields a characteristic dip in brightness that can be detected by telescopes.
This general technique has already been used to find thousands of exoplanets.
https://www.bbc.com/news/science-environment-59044650
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Just because we can't see them does not mean they aren't there. Just because they haven't visited us doesn't mean they don't exist. We are an arrogant species.