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There are various motivations for establishing a human city on the moon. Some envision a lifeboat, lest disaster strike planet Earth. Some envision “charter civilizations” with experiments in better governance, a stepping stone to farther-flung off-world civilizations. For these to work, moon base alpha needs to not only be self-sufficient. It would also have to support human reproduction.

And this is when I learned something new from the NASA representative and ISS astronaut — nobody has tested mammalian reproduction in space or in lunar gravity. People tried to simulate it on Earth, but it is not a good proxy. There was a centrifuge on station but it is not big enough and it causes vibration modes when running.

So, that made me think of a quick and dirty experiment that we might want to run — “Rats in Space.” It can’t be tested on Earth (you can’t make local gravity go away), but it could easily be tested in zero-g. A small sat cylinder could spin in Low Earth Orbit to create a steady lunar-gravity environment, like a rodent-sized Rendezvous with Rama (Arthur Clarke gets the posthumous naming rights). Multi-generational reproductive studies, if wildly successful, could be verified with a simple video feed. And if fetal development and growth was hampered for some reason, it would be good to know early on.

UPDATE: I have been evangelizing the need for this for a few years now. It would be inexpensive to send impregnated guinea pigs (chosen for their longer 60-day gestation period) up with food, water and webcams to record whether a live birth occurs. If all goes well, great, we might be fine. If not, it would motivate proper research. One special need is rapid payload integration and launch to minimize time wasted in 1g while pregant. And ideally, this could be within one of the new reusable tugs, so the samples could be brought back to Earth to analyze what went wrong and to head off PETA protests (they blocked NASA’s last program to study this).

3 responses to “Civilizing the Moon — brainstorming in Half Moon Bay this weekend”

  1. Team Luna… It was a great honor to host astronaut Chris Hadfield for the weekend… He is an amazing guy And prior weekend gatherings with other amazing astronauts, like the Apollo 9 Lunar Module Pilot: Moon Base Alpha — Strategies for Low Cost Lunar Settlement Workshop at DFJsummary and notes

  2. And by strange coincidence, I see my baby Luna headlining Universe Today on this very topic:
    "We Still Have no Idea if it’s Safe to be Pregnant in Space

    Can humans reproduce in space? The short answer is that we don’t know. The long answer is maybe, but there are significant barriers to overcome to make zero-gravity pregnancy safe, and research into the subject is only just beginning. …

    In the long term, if reproduction and pregnancy in space are going to be made safe, advances are needed in one of two areas. We can attack the problem from an engineering standpoint, and develop spinning space habitats that mimic 1G with artificial gravity. Or, from a medical standpoint, we can find ways to help embryo development along at the cellular level, perhaps through drug treatment.

    For now, Earth’s gravity well (and perhaps other gravity wells, like Mars), are the safest havens for pregnancy and birth. Leaving the proverbial cradle is not going to be a trivial matter. In this instance, ‘Mother Earth’ is an apt personification of our planet, as it is here alone that our reproductive systems have evolved to work, and taking our biology beyond it is going to require creative adaptation, both technological and medical, to have a hope of success."

  3. Kibo-sabe! Regarding that ISS centrifuge, it’s on the Kibo module that i visited before launch, hereJAXA JEM Kibo ModuleWhen I review their "JAXA Rodent Missions" in it looks exactly like what I had in mind. In that PDF, I see work on "aging-related symptoms" like bone and muscle loss… but no mention of reproduction. Two takeaways: 1) I wonder why gestational studies were not on their roadmap? and 2) the path to bypass PETA headaches might lie with a JAXA or ESA mission. 🙂

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