The Science Behind

This years John Lewis Christmas advert has gone astronomical, literally. We take a look at some of the science in the advert and answer the questions 'Could you see a man on the moon?' and 'Do helium balloons work in space?'.
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Credits:
"Seeing Moon" by Philipp Salzgeber [1] - salzgeber.at/as.... Licensed under CC BY-SA 2.0 at via Commons - commons.wikime...
"FullMoon2010" by Gregory H. Revera - Own work. Licensed under CC BY-SA 3.0 via Commons - commons.wikime...
Video is owned by the John Lewis Partnership.