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Siddharth Singh on Twitter: "Remember that story about NASA spending millions of dollars developing a pen that worked in space while the Soviets used pencils? About that… https://t.co/j5CBcO9KmX" / Twitter
NASA did not actually spend $12 billion on a space pen while the russians used pencil. | Unbelievable facts, Space pen, Fisher space pen
You need a Russian Space Pen
Writing in space - Wikipedia
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The Saga of Writing in Space | National Air and Space Museum
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That Story About the Million Dollar US Space Pen and Russian Pencil is BS » TwistedSifter
Fact or Fiction?: NASA Spent Millions to Develop a Pen that Would Write in Space, whereas the Soviet Cosmonauts Used a Pencil - Scientific American
The gravity-bending story of Nasa's ingenious space pen | WIRED UK
Retro 51 pen embodies NASA's first and fallen space shuttle Columbia | Space