EM-1 Countdown Simulation with Charlie Blackwell-Thompson

NASA Operation Project Engineer Rommel Rubio monitors operations from his position in Firing Room 1 at the Kennedy Space Center's Launch Control Center during a countdown simulation for Exploration Mission 1. It was the agency's first simulation of a portion of the countdown for the first launch of a Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars.