No. It'll never leave the Solar System unless it happens to surpass the escape velocity of the Solar System. Then, it'll never leave the galaxy unless it surpas

No. It'll never leave the Solar System unless it happens to surpass the escape velocity of the Solar System. Then, it'll never leave the galaxy unless it surpasses the Milky Way's escape velocity. That would require a tremendous amount of energy. IIRC the Milky Way's orbital escape velocity is something between 300-500km/s (depending on whether you leave the Solar System in a way to take advantage of its forward velocity through the Milky Way or not..)