When is a hot glue stick not a hot glue stick? When it’s PLA, of course! A glue gun that dispenses molten PLA instead of hot glue turned out to be a handy tool for joining 3D-printed objects together, ...

Opterus’ carbon fiber composite booms, like the one shown here, are designed with high strain composites that allow them to fold up for compact storage on a spacecraft. In space, the boom will be ...