how do we train for working in weightlessness? parabolic flights offer 22sec of 0g per parabola. Enough to practise individual steps in a glovebox (mounting real ISS experiments) and practising handling of mass in weightlessness (remember: mass and weight is not the same 😉 pic.twitter.com/LOZ5t8XLhJ

— Matthias Maurer (@Explornaut) April 13, 2018