University of Arizona researchers have proposed a 'Noah's Ark' on the Moon to safeguard millions of plant and animal species from Earth's existential threats. Technically ambitious, the concept is profoundly innovative.
The Svalbard Global Seed Vault is well-known, engineered to survive wars, famines, and diseases while housing over a million seed varieties. Similar repositories preserve animal genetic material through sperm, eggs, or tissue samples.
However, these facilities aren't impervious. In 2016, Arctic warming melted permafrost, flooding the Svalbard entrance tunnel with water.
Only the entryway was affected, sparing the seeds, but it was a stark warning. Climate projections forecast worsening risks, questioning their endurance.
Sadly, no Earth site is truly secure. A University of Arizona team now eyes the Moon as a superior alternative.
Could the Moon act as humanity's biodiversity insurance? It offers extreme cold, tectonic stability, no liquid water, and isolation from human activity—making it an ideal vault.
Inspired by Noah's Ark, this lunar facility would cryopreserve seeds, spores, sperm, and eggs from 6.7 million terrestrial animal, plant, and fungal species.
Researchers advocate building inside recently discovered lunar lava tubes, ancient caverns from ancient lava flows that shield against solar radiation, micrometeorites, and thermal extremes.
Solar panels on the surface would power the site, with elevators accessing cryogenic modules storing samples in Petri dishes—seeds at -180°C, stem cells at -196°C.
Extreme cold challenges metal structures, but quantum levitation provides a solution.
“In this process, cryocooled superconducting material floats above a powerful magnet. The two pieces are locked together at a fixed distance, so wherever the magnet goes, the superconductor follows,” explains lead author Jekan Thanga. "It's as if they were held together by ropes, but by invisible ropes."
Shelves would levitate over metal bases, allowing robots to navigate via underlying magnetic tracks.
Logistics are daunting but achievable: roughly 250 launches to transport 50 samples each from 6.7 million species.
Microgravity's long-term effects on samples are unknown. The proposal sparks vital questions but offers a visionary safeguard for life on Earth—pending technical and financial advances.
