NASA to prepare for hypothetical asteroid impact with simulation this week An asteroid will hit Earth again someday Updated: Tags: This week, NASA will start preparing for the possibility of an asteroid hitting the earth in the future. Asteroids have hit Earth before -- in the video above, you can see a 200-year-old crater in Quebec. Another such impact in Mexico wiped out the dinosaurs way back when. But is there anything we can do now to protect our planet? NASA seems to think so. An asteroid will hit Earth again someday, this is certain. In an effort to prepare, NASA’s Planetary Defense Coordination Office will conduct a tabletop exercise of how they will handle an approaching asteroid.