• Astronauts aboard the International Space Station print the | ＳＰ￠ＣＥ.

• Astronauts aboard the International Space Station print the tools they need with a 3D printer!

Since 2014, the International Space Station has a 3D printer where crew members can make the tools or spare parts they need. Launching spaceflights is expensive, so taking materials that turn into tools when needed makes more sense than taking tools that might never be used. A "recycler" recycles 3D-printed objects, so it's possible to print a tool, use it, and then Melt it and print it in the form of something else.