A Comet From Another Solar System Is On Its Way | Defector
Briefly

Comets like 3I/ATLAS are coming from distant stars, with the solar system capable of ejecting bodies into interstellar space. These events can occur due to gravitational interactions, as demonstrated by C/1980 E1 (Bowell), which accelerated past Jupiter and changed its orbit to become hyperbolic, escaping the Sun's gravity. Such findings imply that other solar systems with gas giants may also eject comets into deep space, furthering our understanding of solar system dynamics and the vast number of solar systems existing in the universe.
The presence of gas giants in other solar systems suggests that many bodies similar to C/1980 E1 (Bowell) could also be ejected into interstellar space.
Comet 3I/ATLAS is approaching our inner solar system, traveling at 130,000 mph, having likely originated from another star.
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