Comet kicked out of solar system by Saturn

Saturn boots superfast comet out of our solar system, astronomers discover

Astronomers have identified a comet, C/2022 A1 (A117uUD), ejected from our solar system by Saturn, with a speed exceeding 6,700 mph. The comet, first observed by the Asteroid Terrestrial-impact Last Alert System (ATLAS) on June 14, made a close approach to Saturn in 2022, gaining a hyperbolic trajectory and enough momentum to exit the solar system. The research was published in July in the Research Notes of the AAS journal.

The fact that two ejections after planetary encounter were observed in less than 45 years suggests that such events are relatively frequent.
— Research team, Research Notes of the AAS

The origin of the comet before its encounter with Saturn is unclear, but the researchers believe it originated within our solar system. This is the second known instance of a comet being launched out of our solar system, following C/1980 E1 (Bowell) in 1980, which was ejected by Jupiter. Interstellar visitors to our solar system include the comets Oumuamua in 2017 and 2I/Borisov in 2019, discovered by amateur astronomers. The study authors suggest that ejections like that of C/2022 A1 by Saturn may be relatively common, occurring around once every few decades.