Interstellar object

An interstellar object is a comet, asteroid, or other celestial body that travels through space between different star systems, originating from outside our solar system. These rare visitors pass through our cosmic neighborhood only occasionally, having been ejected from distant planetary systems by gravitational interactions with other objects. Scientists study interstellar objects like the famous comet Oumuamua to learn about how planets and objects form around other stars, giving us a glimpse into alien solar systems without ever leaving Earth.