- Simonetta Di Pippo, Director, UNOOSA
- Laura Jamschon Mac Garry, Consul of Argentina in Vienna
- Sandy Magnus, former US astronaut and Executive Director, American Institute of Aeronautics and Astronautics
- Chiaki Mukai, former Japanese astronaut and Senior Advisor, Japan Aerospace Exploration Agency
- Minoo Rathnasabapathy, Executive Director, Space Generation Advisory Council

The second question asked how his second mission differed from the first.