step 1. gather 2 players facing eachother
step 2. make one player (mission control) jump and ragdoll towards the other player (astronaut) which (astronaut) will jump onto the ragdoll while its still in motion
step 3. astronaut should now be flying and probably dead
extra note. be outside for this to work or else you will just hit your head against a ceiling like an idiot and fall back down


congratulations you now rival other spaceflight businesses

edit : as a user posted down below, a different method would be to stand in the same spot and have only mission control to ragdoll and jump. (I haven't tested this myself to make sure it works)