The whole thing about NASA spending exorbitant amounts of money to design a pen that wrote underwater and upside down while other countries just used pencils is fake. Sorry to burst bubbles, but pencils tips can flake and break off. In zero gravity, any unplanned objects just floating around space capsules can harm astronauts, their life-saving equipment, and their space shuttle.
Instead, take a gander at this chrome-plated astronaut space pen. It’s the original Fisher Space Pen used on the Apollo 7 space mission after two years of testing by NASA has been used on all human-crewed space flights since. It writes in extreme conditions (-30 F to +250 F) and even writes upside down and underwater – just as promised.
And now, even the Russians use this pen in space. Buy your very own pen-astronaut here for $52.