Living underwater was surprisingly peaceful. It was in many ways exactly what I imagine living on Mars would be like one day. There were no humans around us, except for my three SEA STAR crewmembers and me. Apart from the human noises we made, we couldn't hear anything other than the life support systems keeping us alive submerged 22 feet (7 meters) below the surface.
We were living in these extreme conditions to study the challenges astronauts may face on long-duration space missions. Since performing research in space is still rare and expensive, there are numerous facilities around the world that focus on recreating space-like conditions on Earth. One of those stations is the Jules' Undersea Lab, where the SEA STAR simulated space mission took place.
This underwater habitat was called "La Chalupa" when it was built in the 1970s. Its purpose was to allow divers to live and perform research as aquanauts — people who spend more than 24 hours underwater in a so-called state of saturation. Today, the Jules' Undersea Lab is located near Key Largo, in Florida. However, it was originally designed to be ...
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