Astronomers Work to Solve Mystery of an Asteroid, Meteor or Comet Collision with Jupiter - Popular Mechanics

Jupiter Impact - Astronomers Work to Solve Mystery of an Asteroid, Meteor or Comet Collision with Jupiter - Popular Mechanics: "Something invaded our solar system and whacked Jupiter, but professional astronomers were looking the other way at the time. Now, as the shock wave slowly subsides, astronomers are working around the clock to find out exactly what hit Jupiter–and why they didn't see it coming."