How does an astronaut swallow in space?

19 November 2010
Presented by Chris Smith, Redi Tlhabi.

How do space travellers navigate, can you swallow in microgravity, does apple cider vinegar help with weight loss, is there a "gay" gene, why did a game of football come to a frosty conclusion and why do some plant pigments change colour in water? Join Dr Chris for another fact-soaked foray into the world of science...

Add a comment