Ga: asteroids will zoom across the solar system, but then they're still reined in by the sun. Ga: There's a limit to how far in the future we can reasonably guess about an asteroid hitting us. And do we know if any huge asteroids are going to hit us any time soon? Ga: Some good news herethe these huge kilometer like, kind of like planet doomsday asteroids, nassau says they've found more than 95 % of them. None of these are going to be a threat, at least within the next hundred years.