This is a question from Rion:

Can you play any type of sport in space? If you can, how do you do it?

MAGNUS: Well we have not yet come up with a space sport. It would be interesting to imagine what one would be and what kind of equipment you would need. You would have to come up with different games, or variations of the game, depending on what type of gravity you have. For example, here on ISS we have micro-gravity, which is essentially none at all. On the moon there is 1/6th and on Mars 1/3rd. It means here on ISS it would be hard to change direction quickly like you need to do in so many sports, but you could completely set up the game field in three dimensions. On the moon and Mars the conditions would be different. We do need to come up with a sport though!