Hey there, it's Kathy. I just wanted to let you know that you can listen to History of the 90s

early and ad-free on Amazon music included with Prime.

Sean has had some good ideas over the years.

But using Canva was a really good one.

Sean designed some social posts to promote his friend's car boot sale.

They looked good.

Really, really good.

Next thing he knows, someone came and bought the lot, including the car.

Now Sean doesn't know how he's going to get home.

Thanks, Canva.

As the sun broke over the horizon of the Arizona desert on September 26, 1991,

four men and four women dressed in dark blue jumpsuits,

wave goodbye to family members and friends.

Then they stepped through an airtight doorway and into a futuristic structure made of glass and steel.

The group was about to embark on an unprecedented mission, living inside a completely closed ecosystem cut off from everything but sunlight. But they weren't traveling

to outer space. They were staying right here on Earth. I'm Kathy Kinsora and this is History of the

90s, a podcast about a decade that changed the world. On this episode, we're looking back at one of the

most exciting and controversial experiments

of the 20th century.

This is the story of Biosphere 2.

The idea to build a self-sustaining ecosystem in the desert can be traced back to the 1970s and the

Synergia Ranch in Santa Fe, New Mexico. The property was home to a counterculture-style

...