Made in space: Nasa tests 3D printers that will let Mars-bound astronauts craft their own equipment as they travel

Made in space: Nasa tests 3D printers that will let Mars-bound astronauts craft their own equipment as they travel | Mail Online: "Future astronauts might 'forget to pack', just like Earthbound holidaymakers - but it won't matter. Instead, astronauts will use 3D printing machines that can make any object the astronauts need - even metal machine parts."