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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
Fountain Pens and Pencils Shopping Guide: 11 Fine Writing Instruments Beyond Bic - Bloomberg
Space Pens, Pencils, and How NASA Takes Notes in Space - Tech Briefs
The Saga of Writing in Space | National Air and Space Museum
Space pens and a concept that changed my life as a Product Owner | by David Theil | UX Collective
The Space Pen Problem
Richard Branson's Virgin Galactic crew to sign flight log with special space pens | collectSPACE