Steel factory on Mars by Dmitry Ustinov

Picture of the Day 15/01/2021 - Mars is about twice as rich in iron as Earth is; in fact its distinctive red color is due to iron oxides on its surface. So making steel shouldn't be a problem. Here is an artwork of a steel factory (mill) on Mars producing raw steel blocks by Russian artist Dmitry Ustinov. More of his art here.

Cutaway schematic of SpaceX Starship interior by Tom Dixon

British product design student Tom Dixon, in collaboration with the local Starship photographer Austin Barnard, has created a cutaway schematic of SpaceX's cargo Starship interior structure, as it can be observed at SpaceX's Starship production and testing facility in Boca Chica, Texas.

Some more speculative Starship interiors for crewed flights by SpaceX fans:

• Starship interior concept for 64 passengers by Erik Corshammar & YouTuber 'smallstars'
• Cutaway diagram of Lunar Starship by Rocket Posters
• Starship interior concept for 100 passengers by Rick Kiessig & Michel Lamontagne
• Starship interior concept by Jim Murphy
• Speculative internal structure of Starship by William Falconer-Beach
• Speculative internal layout of Starship by Michel Lamontagne
• Cutaway diagram of Starship by Julian Schindler
• Cutaway diagram of Big Falcon Ship by Nick Oberg