From TED Ed, find out what it’s like to become an astronaut — the hard work, the waiting, the disappointments, the emergency training, and the excitement — in this TED Ed with retired astronaut Jerry Carr, who commanded Skylab from November, 1973 to February, 1974. Carr logged a total of 2,017 hours, 15 minutes, and 32 seconds in space.

Watch more videos about astronaut training.

via io9.