Stargazing Challenges
Documentary
201229m
Blue Peter presenters Helen Skelton and Barney Harwood want to learn more about the solar system so they challenge scientists Helen Czerski and Jem Stansfield to find out more. They look at how to make telescopes and rockets, and use a toilet roll to measure the distances between planets.
Runtime
29m
Language
English
Released
Jan 10, 2012
Runtime
29m
Language
English
Released
Jan 10, 2012
Cast
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