Could ‘Armageddon’ really happen? NASA’s successful test launching a spacecraft at an asteroid.

It may sound like a sci-fi film, but NASA actually launched a spacecraft intended to crash into an asteroid earlier this month. Their DART mission - Double Asteroid Redirection Test - aimed to see if they could change the path of an object in space…and it worked. We asked Dr. Eric Jensen, Professor of Astronomy at Swarthmore College, to explain the goal of this mission, what happened, and what NASA could do after this test if an asteroid did ever threaten the planet.