27 October 2021
Astronomers may have detected the first planet outside of the Milky Way
... colleagues observed after they pointed NASA's Chandra X-ray Observatory at a x-ray binary known as M51-ULS-1. M51-ULS-1 lies close to the heart of Messier 51 (M51), a spiral galaxy 31 million light years, that is also known as the Whirlpool galaxy...
