On Monday, at 4:13 p.m. (Arizona time), more than 7 million miles away, NASA’s DART mission, Double Asteroid Redirection Test, successfully slammed into the asteroid Dimorphos, making history as the first step toward a possible future planetary defense strategy.
Cristina Thomas, assistant professor in the Department of Astronomy and Planetary Science and team lead on the DART mission, along with Jason Wilder, vice president for research, were at Mission control in Laurel, Maryland to witness the historic moment unfold.
Watch Wilder’s video of the moments leading up to the impact below.