WATCH: Day 2: Crew prepares for critical engine burn to escape Earth’s orbit

Space robotics expert Jessica Todd told ABC News the translunar injection burn is “the make or break for whether our astronauts are going to get out to the moon or stay in orbit around Earth.”

​Space robotics expert Jessica Todd told ABC News the translunar injection burn is “the make or break for whether our astronauts are going to get out to the moon or stay in orbit around Earth.”  US Space robotics expert Jessica Todd told ABC News the translunar injection burn is “the make or break for whether our astronauts are going to get out to the moon or stay in orbit around Earth.”