The Fisher Space Pen (the AG-7) and its pressurized ink cartridge were developed by Paul Fisher in 1966 his quest for a leak-proof pen. The unique pen’s ability to write in zero gravity made it the choice of NASA, and they enlisted it into their space program. After passing NASA’s testing, the pen first left earth fifty years ago aboard Apollo 7, which went into space on … [Read more...] about Fisher Space Pen 50th Anniversary Pen