This Arizona dome was a real-life “Hunger Games” for scientists

Eight Scientists’ Grueling Two-Year Biosphere 2 Confinement

On September 26, 1991, eight bold scientists locked themselves inside a giant glass dome in Oracle, Arizona. For two full years, they lived in this 3.14-acre world called Biosphere 2, growing their own food and breathing recycled air. Things got tough fast.

They lost 17% of their body weight from hunger, split into feuding groups, and watched oxygen drop to dangerously low levels. One woman even cut off her fingertip and had to break the seal for surgery.

Still, when they walked out in 1993, all eight had survived.

Today, Biosphere 2 stands open to visitors who can tour the actual living quarters where this remarkable space colonization experiment unfolded.

Texas Billionaire Built a $200 Million Glass World in the Desert

Edward Bass spent $200 million on Biosphere 2 through his company Space Biospheres Ventures. Workers started building the huge project in Oracle, Arizona in 1987.

John Allen and Margret Augustine led the design team. The steel and glass building covered 3.14 acres of desert land.

The place looked like something from a science fiction movie, with shiny glass panels across the landscape.

Seven Mini-Worlds Lived Under One Roof

The sealed glass building held seven different environments.

The team built a rainforest, ocean with coral reef, mangrove wetlands, grassland, fog desert, farming area, and living space. They picked 3,800 types of plants and animals to balance these small ecosystems.

Special systems recycled air, water, and waste throughout the building. They wanted to create a completely self-supporting world that needed nothing from outside.

Eight Brave Souls Signed Up for the Ultimate Lockdown

The team chose eight researchers who knew about medicine, farming, plants, and ocean life.

Jane Poynter, Roy Walford, Mark Nelson, Sally Silverstone, Taber MacCallum, Laser Florman, Mark Van Thillo, and Linda Leigh made up the group.

Four men and four women would live in this glass world for two years.

Before going in, they trained hard in growing food, fixing equipment, and handling problems that might happen in their sealed world.

Thousands Watched as the Doors Sealed Shut

On September 26, 1991, the eight team members walked through the airlock into their new home. Thousands of people came to watch the closing ceremony.

News cameras filmed as the big doors closed. The crew now faced their two-year mission with everything they needed supposedly inside.

They would grow their food, reuse their water, and breathe air made by their plants and machines.

A Sliced Fingertip Broke the Seal Just Days In

Problems started just twelve days after the mission began. Jane Poynter badly cut her finger while working with a rice-cleaning machine.

The injury forced her to leave Biosphere 2 for medical help at a nearby hospital. When she came back, people said she brought back supplies in her bag.

This early break in the sealed environment raised questions about how real the experiment was.

Hunger Became Their Constant Companion

The team never had enough food during their stay. They planted more than 80 different crops in their farm area, but didn’t grow as much as they hoped.

The crew ate just 1,750-2,100 calories daily, much less than active adults need.

Their bodies showed the effects, with team members losing about 17% of their body weight in the first eight months. They talked about food all the time and dreamed of meals they would eat after leaving.

Gasping for Breath at 14,000 Feet

After 16 months inside, the team faced a serious problem. Oxygen levels dropped from the normal 20.9% to a dangerous 14. 5%.

The crew felt like they lived at 13,390 feet up, having trouble sleeping, feeling tired all the time, and thinking slowly. Things got so bad that outside managers pumped oxygen into the building twice.

This help broke the closed-system rules but kept the crew safe enough to continue.

Nature Refused to Follow the Plan

The carefully designed ecosystems soon went crazy. Morning glory vines grew too fast, choking other plants in several areas.

Cockroaches multiplied quickly, creating a pest problem they couldn’t control. Most bugs that helped plants grow died while “crazy” ants spread throughout the building.

These surprises showed how hard it is to guess what will happen in complex natural systems.

The Crew Split Into Warring Camps

Living close together under stress caused problems. The eight crew members split into two fighting groups that barely talked to each other.

Some wanted to focus on science while others cared more about daily tasks. By the end of the mission, meals became quiet times with team members avoiding eye contact.

The social experiment showed how quickly people can stop getting along under pressure.

They Made It Out Alive After 731 Days

All eight team members walked out on September 26, 1993, finishing their full two-year mission. Despite losing weight, having oxygen problems, and mental stress, medical tests showed they were physically healthy.

They had gathered useful scientific information about living in a closed system.

The crew proved humans could survive in an isolated place for long periods, though with many challenges.

Arizona’s Glass Ark Lives On With New Purpose

Columbia University took over Biosphere 2 in 1995, shifting focus toward earth science research. A second mission launched in March 1994 with seven new crew members but lasted only six months before being cut short.

Today, the University of Arizona runs the facility as an earth systems laboratory and research center.

The striking glass structure still stands in the Arizona desert, a monument to one of the most ambitious ecological experiments ever attempted.

Visiting Biosphere 2, Arizona

Biosphere 2 at 32540 S Biosphere Rd in Oracle lets you explore where eight scientists lived sealed inside for two years from 1991-1993.

You can take a self-guided tour using their app with original photos and videos from the mission. Adult tickets cost $25, seniors $23, and kids 5-17 pay $15.

The facility opens daily 9am-4pm and includes all five biomes plus exhibits about the challenges the Biospherians faced during their survival experiment.

This article was created with AI assistance and human editing.

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