You most probably have seen different versions of Da Vinci's masterpiece Mona Lisa, be it a depiction by AI or replicas very close to the original, when you dug into the depths of the internet. However, this time it was portrayed by a specific data transmission conducted by a 3D-printed space-grade polymer.

“In recent years we have been working on 3D printing using ‘polyether ether ketone’ – or PEEK – which is a tough thermoplastic with a melting point up around 350ºC, able to do the equivalent job of some metal parts," non-metallic materials and processes engineer, Ugo Lafont, at ESA explains.