1. Professor Brian Cox
2. Commander Chris Hadfield
3. Zarina Mugal
4. Rufus and Holly Hobman
5. Damola Ayeni
6. Sarthak Nigam
7. Lilian and Charlotte Ware (left) and Abbie and Imogen Hughes
8. Rufus Clews and his dad, Dan
9. Andreas Mogensen
10. Mitesh Odedra and Ashfar Uddin
11. Alex Hicks
12. Lois Perry
13. Jo Johnson
14. Dr Kevin Fong
Tom Chivers is a science writer for BuzzFeed and is based in London.
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