Interesting timing, I just tweeted a Biosphere 2 brochure I found in a used book yesterday. https://twitter.com/julianweisser/status/1111686000248410112?s=21 h

Interesting timing, I just tweeted a Biosphere 2 brochure I found in a used book yesterday. https://twitter.com/julianweisser/status/1111686000248410112?s=21 https://twitter.com/julianweisser/status/1111686000248410112...