Mars Cryonics: A Second Life on the Red Planet

Imagine someone driven by the idea of living on Mars someday, or someone who dedicated their life to helping humanity reach Mars—only to die on Earth before knowing how it all turned out. What if they could wake up someday on Mars for their second life?

For thousands of us already signed up for cryonics, preserving ourselves upon death in super cold liquid nitrogen (we call it deanimation) in hopes of being revived in a future era feels like a rational extension of the human drive to explore. The waking up part (reanimation) might seem like science fiction, but cryopreservation is a well-developed medical science. While offering a second life is a bold ambition, "down to Earth" medical realities will make cryopreservation imperative for humanity’s survival on the red planet.

Why Mars?

Any highly technologically developed civilization hardly has any excuse for not having at least two planets, even if just for self-preservation reasons alone. As far as planets in our solar system, Mars is an obvious choice. Even most O'Neill colony advocates are also advocates for Mars. And the Moon? We should do all of the above.

But of course there are other exciting and unique reasons to go to Mars, like for the adventure or all kinds of scientific reasons. Mars is a planetary scientist's dream, with unusual and often mysterious terrain and layers upon layers of history organized like libraries on the cliff sides of broken-down ancient volcanoes.

Also, if we find past life on Mars, we can check if it's the same genome as Earth's life, which would have profound implications. In that case, it would be more likely that we're from Mars and not the other way around. If Mars's life originated independently, that's equally profound! That would double the likelihood of life originating throughout the universe (we currently only have Earth life as one data point!).

Mars has many highly underrated qualities. First and foremost, Mars' day/night cycle, called a "sol," is amazingly close to Earth's at approximately 24 hours and 40 minutes. Also, Mars has a thin carbon dioxide atmosphere, massive water ice deposits, and several beneficial nutrients in the soil. You might see where I'm going with this– these are all essential for growing crops! Just scrape off 1 foot of radiation-baked regolith, protect the area with a greenhouse, and toss in some organics. Let's just say it would be vastly easier to grow crops on Mars than on the Moon, which has none of those other than ice.

One other advantage Mars has over the Moon is distance, with regards to governance. Mars is far enough from Earth to avoid constant interference, while lunar settlements will likely remain under the close watch of existing terrestrial powers (whichever governments or alliances happen to be dominant at the time). On Mars, we’d have a unique opportunity to experiment with new forms of governance and Transhumanist-friendly frameworks, free from the heavy hand of Earth’s rule.

Why a Martian Cryopreservation facility?

In the early days, the human Martian population will be sparse among the robots, whom we imagine doing most of the heavy lifting. This scenario might be the normal course of things, and even with the help of robots, a difficult life for humans. Our Earth-evolved biology will face new risks. Cryopreservation should be one of the first installations on Mars—a multipurpose asset for medical needs, reproduction, and long-term settlement resilience.

Radiation, lower gravity, and environmental stresses could affect organ health, fertility, and fetal development. Understanding what specific ways we need to upgrade ourselves biologically or otherwise will take some time. It will also take time to lay the groundwork for our cities, and in this new frontier there will be catastrophic injuries. Storing blood, tissues, and organs will be necessary for long-term medical use in Mars communities. 3D-printing full-sized functional organs could still be decades away, especially when it comes to the complexity of the heart and lungs. Having too few candidates to donate will be an issue in the early days.

Fertility in different gravitational and radiation environments, such as Mars, is a complex and under-explored topic. Part of a Martian solution can be to cryonically store healthy human eggs, sperm, and embryos deep under the regolith to protect them from radiation. Or if gravity turns out to be the significant issue, kept in orbiting cryonic facilities with artificial gravity (and we currently don't know if acceleration from rotation is sufficient). The point is, we want to ensure that humans don't settle on Mars only to depopulate!

Someday, living on Mars will start to seem normal and civilization will thrive. The early human Martians will always be remembered as heroes. Cryonic preservation should be part of the package for our Mars founders, if they choose. A Martian cryopreservation facility would stand as both a survival tool and a symbol of humanity's great awakening as a multi-planetary species.

Advantages for Cryopreservation on Mars?

Special traits of Mars could help make this vision possible, such as the extreme cold, low atmospheric pressure, and geological stability of the red planet. And while the average Martian temperature doesn't match liquid nitrogen levels at existing cryonics facilities, specific underground environments—especially near the poles—come surprisingly close. The soil acts as insulation, and the low pressure reduces heat transfer.

Mars is cold, but not quite cryonics-cold—which means really cold, like -320°F to keep liquid nitrogen stable. The surface averages about -81°F, and while temperatures near the poles can plunge to -225°F in winter, they bounce around a lot. A few meters underground, it’s more stable—around -166°F—which is better for anything you want to keep frozen for centuries. Going way up into the mesosphere would get you even colder, but good luck doing maintenance up there.

After looking at all the options, a tunnel drilled into a mountainside makes the most sense: it protects against radiation and meteoroids, keeps the temperatures steady, gives easy access to the dewars, and still lets us take advantage of Mars’ low-pressure, cold air to help out.

The Tunnel Vision

My proposed design is simple: a 12-foot diameter tunnel (coincidentally the size of The Boring Company's tunnels!) drilled into a mountainside or cliff face. The precious cryo-contents would be protected from radiation, meteorites, and temperature swings by several meters of surrounding Martian regolith and, at the same time, benefit from Mars' naturally low pressures and cold air.

Cryonic storage dewars generally stay colder for longer at lower ambient air pressure because the boiling point of cryogens is directly affected by pressure. Lower pressure means a lower boiling point; therefore, the cryogen will stay liquid at a lower temperature. So, this "cave" environment provides radiation protection and passive thermal stability without requiring the same energy-intensive cooling systems as cryonics facilities on Earth.

The extra space within the tunnel diameter would offer room for supplemental equipment and accessibility for humans or robots to navigate, refill the dewars, and perform maintenance. Humanoid robots or other types of autonomous systems would be best since humans would need space suits in the low-pressure environment. If there is a need for more space, we drill more tunnels. With air pressure not being an issue, expanding the infrastructure is easier.

Drilling in a convenient location would be an excellent start for an early Mars community. But, robotic drills may get some help from Mars's existing terrain. Utilizing the natural lava tube formations on Mars could reduce the need for extensive excavation. Recent research, including help from AI, has unveiled the presence of pit craters believed to be entrances to extensive subsurface lava tubes created by ancient volcanic activity on Mars. These natural formations are significantly wider than similar caves on Earth–perhaps 100x–thanks to Mars' lower gravity, which is 38% of Earth's.

Maintenance: Robots, RTGs, and Autonomy

Once on Mars, you need more than just cold. You need power and reliability. Cryonics dewars require periodic nitrogen top-offs, monitoring, and environmental control. A large main storage tank providing the refills would also need to be topped off periodically. A solar-powered or radioisotope thermal generator (RTG)-powered system could support robotic or otherwise autonomous systems for maintaining and servicing the dewars, supervised from Earth in the beginning stages or a nearby Martian outpost.

In short, we need high autonomy. Even with humans on Mars, there will be long stretches with no one available to babysit cryopreservation chambers. Think sealed pipelines, vacuum-insulated tanks, internal sensors, and AI-level decision-making.

From Earth to Mars

Initially, cryonically preserved individuals could be stored at existing facilities like Alcor in Scottsdale, AZ, Earth, and transferred to Mars once infrastructure and transportation allow. The Mars-bound space company (hello, SpaceX) would want input from seasoned cryonics facilities such as Alcor to outline logistics, launch readiness, and protocols to make this feasible. It wouldn't need to be a large-scale operation immediately—just the spark proving somebody can get it done. Imagine: Starship ferries not just settlers but sleeping pioneers whose time hasn't come yet.

Cryopreservation is inevitable if we're serious about building permanent human settlements on Mars. We'll need it to store blood, organs, embryos, sperm, and eggs—basic ingredients for survival and medicine in a fragile ecosystem. So, if we're already bringing the gear from Earth to Mars, why not offer cryonics too? The same equipment could preserve not just biology for reproduction and medical emergencies but people themselves—neuros or whole bodies—for a second life.

A Martian cryopreservation facility could start small, offering memberships to both settlers on Mars and future settlers still on Earth. Some funding might come from wealthy visionaries who dream of waking up under a Martian sky, helping support the infrastructure Mars communities will desperately need. It's hard to find any mention of cryonics from Elon Musk, but might he be interested if it meant someday being revived on Mars? He would surely appreciate the logic of having a cryonic medical facility to protect early Mars settlements.

Yet beyond the practical benefits, the very idea of cryopreservation on Mars touches something much larger in us. Waking up on another world would be profoundly compelling even for those who would never have considered cryonics before. And what of the heroes who worked tirelessly on Earth for a far-off dream of a Martian civilization? Someday when they are revived—along with the early settlers—imagine the party they will have together. A Martian cryopreservation facility is a beautiful dream worth engineering.