Space money (Courtesy Travelex)

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As space tourism becomes a reality, a new kind of currency may be needed. To fill this void, foreign currency specialist Travelex launched the QUID. The Quasi Universal Intergalactic Denomination (QUID) was designed to handle the stress of space travel and the environment in orbit around the Earth. "None of the existing payment systems we use on Earth — like cash, credit or debit cards — could be used in space for a variety of different reasons. Anything with sharp edges, like coins, would be a risk to astronauts while the chips and magnetic strips used in our cards on Earth would be damaged beyond repair by cosmic radiation," said Professor George Fraser from the University of Leicester. "What's more, because of the distances involved ... chip and pin technology is also out of the question."

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