NAUTILUS-X

When it comes to manned missions into deep space there is no shortage of proposals. People have dreamt up spacecraft with various fantastical elements, from futuristic propulsion engines to somewhat ambitious aesthetic designs, but one proposal that warrants a serious glance is Nautilus-X. It’s a spacecraft that builds largely on existing technology to make human exploration of the Solar System a realistic possibility, and at a reasonable price too.

Drawn up by NASA engineers Mark Holderman and Edward Henderson, the name stands for Non-Atmospheric Universal Transport Intended