ESA astronaut Andreas Mogensen is seen here during an aircraft flight in 2010 when he enjoyed his first taste of weightlessness. Parabolic flights offer 20 seconds of zero-gravity at a time and are one of the few practical ways for humans to experience weightlessness without leaving Earth.
In this picture Andreas is waiting for the weightless period to start on the parabolic flight to practise gripping objects and moving in zero-gravity.