Astronomers may have discovered the first planet outside of our galaxy

Signs of a planet transiting a star outside of the Milky Way galaxy may have been detected for the first time. This intriguing result, using NASA's Chandra X-ray Observatory, opens up a new window to search for exoplanets at greater distances than ever before.

source https://phys.org/news/2021-10-astronomers-planet-galaxy.html