How many simulations do the astronauts need before they go into space?

Answer 1

There's no set requirement - it depends entirely on the mission requirements (EVA, satellite deployment or recovery, ISS docking, etc.) as to what they'll do an how many they'll perform.

However, it's not unusual for them to train for hundreds or thousands of hours prior to their missions. Remember that mission crews are typically selected several years in advance of the actual mission, so they have plenty of time to train.

Answer 2

Astronauts typically undergo multiple simulations before going into space. These simulations help them practice various aspects of their mission, such as emergency procedures, working in microgravity, and using equipment on the spacecraft. The number of simulations can vary depending on the specific mission and the experience level of the astronauts.