When I first decided to write Marrying Mars, I knew I wanted it to be authentic. My main character worked at a copper mine, so I took my boys down to the copper mine tour outside of Tucson, and we were able to see the open pit and the inside of the factory. While in Tucson, I heard that the Biosphere 2 was originally being tested as a possibility for a colony on Mars. The tour wasn’t that interesting BUT what was inside definitely was. They have been able to maintain different ecosystems, climates and varying vegetation from different hemispheres, all in one building. The story behind this project was fascinating.
A test was performed right after the building was built where a control group was supposed to work on growing and building a colony within. The Biospherians were locked inside, but after a time many of them were losing their minds, so the experiment was forced to end early. It turned out that the concrete used wasn’t curated before they sealed them in so it was sucking out a lot of oxygen. This tidbit didn’t make it into my story, but it doesn’t make it any less interesting. Plus, I learned a lot of useful information I did use in my writing. Have you read Marrying Mars yet?