NASA Set to Launch DART Asteroid-Crashing Planetary Defence Mission on November 24: How to Watch

Final rehearsals for NASA's planetary defence test are already underway. The one-of-a-kind mission, which will launch next week, is set to intentionally crash a spacecraft into an asteroid to deflect its path. The Double Asteroid Redirection Test (DART) will attempt to hit the moonlet asteroid Dimorphos, which orbits a larger asteroid called Didymos.