When do liquidity premia exceed carrying costs?

A “lunar ark” hidden inside the moon’s lava tubes could preserve the sperm, eggs and seeds of millions of Earth’s species, a group of scientists has proposed.

The ark, or gene bank, would be safely hidden in these hollowed-out tunnels and caves sculpted by lava more than 3 billion years ago and would be powered by solar panels above. It would hold the cryogenically preserved genetic material of all 6.7 million known species of plants, animals and fungi on Earth, which would require at least 250 rocket launches to transport to the moon, according to the researchers.

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