Many Star Wars fans would agree that the most iconic space station in the fictional universe is the Death Star. The massive floating space station might look like a moon, but it is a fully functional platform for blowing up planets. NASA chief engineer Brian Muirhead says that the Empire went about making its Death Star the wrong way.
The way to make a massive Death Star isn't to build one from scratch as the Empire did. The way to build one according to Muirhead is to use an existing asteroid. The engineer figures that the asteroid would provide the metals and could provide needed organic compounds as well.