Scientists now believe astronauts will be able to build replacements of tools, by simply printing them. The problem of how to replace broken tools in space, has always been a worry.
As we expand into space, we’re going to need a lot of tools, in order to build and maintain space stations.
Dr Kaplan is shown in the video a printed copy of an original wrench, fully functional.
He said: ‘So going into space, you just take a printer and you can print whatever you want.’
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