Just be careful those nuts and bolts don't fly away..!
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NASA's Awesome Vintage-Style Posters Will Make You Want To Walk On Mars
![Mars Explorers Wanted Posters](https://assets.heart.co.uk/2016/25/mars-explorers-wanted-posters-6-1466427370-view-3.jpg)
6. Just be careful those nuts and bolts don't fly away..!
Picture: Nasa Mars Mission
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NASA's Awesome Vintage-Style Posters Will Make You Want To Walk On Mars
Picture: Nasa Mars Mission