Over the past several decades, every mission that NASA has ever flown has first been practiced right here on Earth. This gallery shows dozens of training exercises from the Apollo missions through the shuttle launches.
In space, no one wants any surprises. To avoid being caught off guard where no one can hear you scream, every step of every space mission is practiced on the ground (or underwater, or in the air). We take a look back at NASA's decades of creative methods of astronaut training.
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Now they have the exciting Unemployment line simulator to train the astronauts on.
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