Although more than 5,000 exoplanets have been identified too far, the vast majority are located within the Milky Way galaxy, around 3,000 light-years from Earth.
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Astronomers may have just found the first ever planet outside of our Milky Way Galaxy. This possible exoplanet, which has been named M51-ULS-1b, is located about 28 million light-years away from us in a spiral galaxy known as Messier 51 (M51) – also called the Whirlpool Galaxy. Astronomers were observing three galaxies by using NASA’s. Read more »