Video: Orion launch replays

Teams at Stennis Space Center in Mississippi removed the core of NASA’s first Space Launch System heavy-lift rocket from a test stand earlier this week for loading onto a barge to carry it to Kennedy Space Center in Florida, where the rocket stage is due to arrive by the end of the month to start final preparations for a test flight around the Moon.

A critical test firing Saturday of the four main engines powering the first stage of NASA’s gargantuan Space Launch System moon rocket is the final major hurdle before the fully assembled booster’s costly, oft-delayed launch late this year on an unpiloted test flight.

NASA Administrator Charlie Bolden speaks to Spaceflight Now’s Stephen Clark about the upcoming test flight of the Orion space capsule on the EFT-1 mission.