The consortium tested the practicalities of using a printer on the Moon by setting up a D-shape 3D printer, which are used to print very large house-sized structures, in a vacuum chamber with simulated lunar material.

BBC: 3D printed moon building designs revealed

By using the latest in rear-projection technology, a high resolution, colour 3D-like holographic image is projected onto a flat two-dimensional sheet of acrylic in the shape of a woman.

BBC: Airport avatars offer travel advice