SpaceWinking exoplanets could shed light on distant comet strikes Shoemaker-Levy 9, a comet that smacked into Jupiter in 1994, could help us detect similar collisions in other solar systems News
EarthDual asteroid strike hints at chaos in the inner solar system A pair of unrelated asteroids. That's not supposed to happen. What on earth skewed their orbits, and plunged us into ice age? News