Elon Musk is well-known for his ability to create a media sensation. Scarcely a week goes by that the founder of SpaceX and Tesla doesn’t have an announcement or update to make – often via his social media outlet of choice, twitter. And as a major figure in the NewSpace industry, anything he says is guaranteed to elicit reactions (both critical and hopeful) from the space community and general public.
Just last week (on Monday, Sept. 17th), he revealed new information about the Big Falcon Rocket (BFR) and who its first passenger would be when it conducts its first lunar mission (which is planned for 2023). And on Friday (Sept. 21st), Musk shared some updated plans on when a SpaceX Martian colony could be established. According to the tweet he posted, his company could build a base on Mars (Mars Base Alpha) as early as 2028.
We’ve spent a few articles on Universe Today talking about just how difficult it’s going to be to travel to other stars. Sending tiny unmanned probes across the vast gulfs between stars is still mostly science fiction. But to send humans on that journey? That’s just a level of technology beyond comprehension.
For example, the nearest star is Proxima Centauri, located a mere 4.25 light years away. Just for comparison, the Voyager spacecraft, the most distant human objects ever built by humans, would need about 50,000 years to make that journey.
I don’t know about you, but I don’t anticipate living 50,000 years. No, we’re going to want to make the journey more quickly. But the problem, of course, is that going more quickly requires more energy, new forms of propulsion we’ve only starting to dream up. And if you go too quickly, mere grains of dust floating through space become incredibly dangerous.
Based on our current technology, it’s more likely that we’re going to have to take our time getting to another star.
And if you’re going to go the slower route, you’ve got a couple of options. Create a generational ship, so that successive generations of humans are born, live out their lives, and then die during the hundreds or even thousands of year long journey to another star.
Imagine you’re one of the people destined to live and die, never reaching your destination. Especially when you look out your window and watch a warp ship zip past with all those happy tourists headed to Proxima Centauri, who were start enough to wait for warp drives to be invented.
No, you want to sleep for the journey to the nearest star, so that when you get there, it’s like no time passed. And even if warp drive did get invented while you were asleep, you didn’t have to see their smug tourist faces as they zipped past.
Is human hibernation possible? Can we do it long enough to survive a long-duration spaceflight journey and wake up again on the other side?
Before I get into this, we’re just going to have to assume that we never merge with our robot overlords, upload ourselves into the singularity, and effortlessly travel through space with our cybernetic bodies.
For some reason, that whole singularity thing never worked out, or the robots went on strike and refused to do our space exploration for us any more. And so, the job of space travel fell to us, the fragile, 80-year lifespanned mammals. Exploring the worlds within the Solar System and out to other stars, spreading humanity into the cosmos.
Come on, we know it’ll totally be the robots. But that’s not what the science fiction tells us, so let’s dig into it.
We see animals, and especially mammals hibernating all the time in nature. In order to be able survive over a harsh winter, animals are capable of slowing their heart rate down to just a few beats a minute. They don’t need to eat or drink, surviving on their fat stores for months at a time until food returns.
It’s not just bears and rodents that can do it, by the way, there are actually a couple of primates, including the fat-tailed dwarf lemur from Madagascar. That’s not too far away on the old family tree, so there might be hope for human hibernation after all.
In fact, medicine is already playing around with human hibernation to improve people’s chances to survive heart attacks and strokes. The current state of this technology is really promising.
They use a technique called therapeutic hypothermia, which lowers the temperature of a person by a few degrees. They can use ice packs or coolers, and doctors have even tried pumping a cooled saline solution through the circulatory system. With the lowered temperature, a human’s metabolism decreases and they fall unconscious into a torpor.
But the trick is to not make them so unconscious that they die. It’s a fine line.
The results have been pretty amazing. People have been kept in this torpor state for up to 14 days, going through multiple cycles.
The therapeutic use of this torpor is still under research, and doctors are learning if it’s helpful for people with heart attacks, strokes or even the progression of diseases like cancer. They’re also trying to figure out if there are any downsides, but so far, there don’t seem to be any long-term problems with putting someone in this torpor state.
A few years ago, SpaceWorks Enterprises delivered a report to NASA on how they could use this therapeutic hypothermia for long duration spaceflight within the Solar System.
Currently, a trip to Mars takes about 6-9 months. And during that time, the human passengers are going to be using up precious air, water and food. But in this torpor state, SpaceWorks estimates that the crew will a reduction in their metabolic rate of 50 to 70%. Less metabolism, less resources needed. Less cargo that needs to be sent to Mars.
The astronauts wouldn’t need to move around, so you could keep them nice and snug in little pods for the journey. And they wouldn’t get into fights with each other, after 6-9 months of nothing but day after day of spaceflight.
We know that weightlessness has a negative effect on the body, like loss of bone mass and atrophy of muscles. Normally astronauts exercise for hours every day to counteract the negative effects of the reduced gravity. But SpaceWorks thinks it would be more effective to just put the astronauts into a rotating module and let artificial gravity do the work of maintaining their conditioning.
They envision a module that’s 4 metres high and 8 metres wide. If you spin the habitat at 20 revolutions per minute, you give the crew the equivalent of Earth gravity. Go at only 11.8 RPM and it’ll feel like Mars gravity. Down to 7.8 and it’s lunar gravity.
Normally spinning that fast in a habitat that small would be extremely uncomfortable as the crew would experience different forces at different parts of their body. But remember, they’ll be in a state of torpor, so they really won’t care.
Current plans for sending colonists to Mars would require 40 ton habitats to support 6 people on the trip. But according to SpaceWorks, you could reduce the weight down to 15 tons if you just let them sleep their way through the journey. And the savings get even better with more astronauts.
The crew probably wouldn’t all sleep for the entire journey. Instead, they’d sleep in shifts for a few weeks. Taking turns to wake up, check on the status of the spacecraft and crew before returning to their cryosleep caskets.
What’s the status of this now? NASA funded stage 1 of the SpaceWorks proposal, and in July, 2016 NASA moved forward with Phase 2 of the project, which will further investigate this technique for Mars missions, and how it could be used even farther out in the Solar System.
Elon Musk should be interested in seeing their designs for a 100-person module for sending colonists to Mars.
In addition, the European Space Agency has also been investigating human hibernation, and a possible way to enable long-duration spaceflight. They have plans to test out the technology on various non-hibernating mammals, like pigs. If their results are positive, we might see the Europeans pushing this technology forward.
Can we go further, putting people to sleep for decades and maybe even the centuries it would take to travel between the stars?
Right now, the answer is no. We don’t have any technology at our disposal that could do this. We know that microbial life can be frozen for hundreds of years. Right now there are parts of Siberia unfreezing after centuries of permafrost, awakening ancient microbes, viruses, plants and even animals. But nothing on the scale of human beings.
When humans freeze, ice crystals form in our cells, rupturing them permanently. There is one line of research that offers some hope: cryogenics. This process replaces the fluids of the human body with an antifreeze agent which doesn’t form the same destructive crystals.
Scientists have successfully frozen and then unfrozen 50-milliliters (almost a quarter cup) of tissue without any damage.
In the next few years, we’ll probably see this technology expanded to preserving organs for transplant, and eventually entire bodies, and maybe even humans. Then this science fiction idea might actually turn into reality. We’ll finally be able to sleep our way between the stars.
Compared to a regular human, the Earth is enormous. And compared to the Earth, the Universe is really enormous. Like, maybe infinitely enormous.
And yet, Earth is the only place humans are allowed to own. You can buy a plot of land in the city or the country, but you can’t buy land on the Moon, on Mars or on Alpha Centauri.
It’s not that someone wouldn’t be willing to sell it to you. I could point you at a few locations on the internet where someone would be glad to exchange your “Earth money” for some property rights on the Moon. But I can also point you to a series of United Nations resolutions which clearly states that outer space should be free for everyone. Not even the worst rocky outcrop of Maxwell Montes on Venus, or the bottom of Valles Marineris on Mars can be bought or sold.
However, the ability to own property is one of the drivers of the modern economy. Most people either own land, or want to own land. And if humans do finally become a space faring civilization, somebody is going to want to own the property rights to chunks of space. They’re going to want the mining rights to extract resources from asteroids and comets.
We’re going to want to know, once and for all, can I buy the Moon?
Until the space age, the question was purely hypothetical. It was like asking if you could own dragons, or secure the mining rights to dreams. Just in case those become possible, my vote to both is no.
But when the first satellite was placed into orbit in 1957, things became a lot less hypothetical. Once multiple nations had reached orbitable capabilities, it became clear that some rules needed to be figured out – the Outer Space Treaty.
The first version of the treaty was signed by the US, Soviet Union and the United Kingdom back in 1967. They were mostly concerned with preventing the militarization of space. You’re not allowed to put nuclear weapons into space, you’re not allowed to detonate nuclear weapons on other planets. Seriously, if you’ve got plans and they relate to nuclear weapons, just, don’t.
Over the years, almost the entire world has signed onto the Outer Space Treaty. 106 countries are parties and another 24 have signed on, but haven’t fully ratified it yet.
In addition to all those nuclear weapons rules, the United Nations agreed on several other rules. In fact, its full name is, The Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies.
Here’s the relevant language:
Outer space, including the moon and other celestial bodies, is not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means.
No country can own the Moon. No country can own Jupiter. No country can own a tiny planet, off in the corner of the Andromeda Galaxy. And no citizens or companies from those countries can own any property either.
And so far, no country has tried to. Seriously, space exploration is incredibly difficult. We’ve only set foot on the Moon a couple of times, decades ago, and never returned.
But with all the recent developments, it looks like we might be getting closer to wondering if we can own dragons, or a nice acreage on Mars.
Perhaps the most interesting recent development is the creation of not one, not two, but three companies dedicated to mining resources from asteroids: Planetary Resources, Kepler Energy, and Deep Space Industries.
Just a single small asteroid could contain many useful minerals, and there could potentially be tens of billions of dollars in profit for anyone who can sink robotic mining shafts into them.
The three different companies have their own plans on how they’re going to identify potential mining targets and extract resources, and I’m not going to go into all the details of what it would take to mine an asteroid in this video.
But according to the Outer Space Treaty, is it legal? The answer, is: probably.
The original treaty was actually pretty vague. It said that no country can claim sovereignty over a world in space, but that doesn’t mean we can’t utilize some of its resources. In fact, future missions to the Moon and Mars depend on astronauts “living off the land”, harvesting local resources like ice to make air, drinking water and rocket fuel. Or building structures out of Martian regolith.
Mining an entire asteroid for sweet sweet profit is just a difference of scale.
In order to provide some clarity, the United States passed the U.S. Commercial Space Launch Competitiveness Act of 2015. This gave details on how space tourism should work, and described how companies might mine minerals from space. The gist of the law is, if an American citizen can get their hands on materials from an asteroid, they own it, and they’re free to sell it.
As you know, SpaceX is planning to colonize Mars. Well, so far, their plans include building the most powerful rocket ever built, and hurling human beings at Mars, hundreds at a time. The first mission is expected to blast off in 2024, so this is quickly becoming a practical issue.
What are the legalities of colonizing Mars? Will you own a chunk of land when you stumble out of the Interplanetary Transport Ship out on the surface of Mars?
Right now, you can imagine the surface of Mars like a research station on Antarctica. If SpaceX, an American company, builds a colony on Mars, then it’s essentially US government property. Anything that happens within that colony is under the laws of the United States.
If a group of colonists from China, for example, set out on their own, they would be building a little piece of China. And no matter what kind of facility they build, nobody within the team actually owns their homes.
If you’re out on the surface, away from a base, everything reverts to international law. Watch out for space pirates!
Under the treaty, every facility is obliged to provide access to anyone else out there, which means that members of one facility are free to visit any other facility. You can’t lock your door and keep anyone out.
In fact, if anyone’s in trouble, you’re legally bound to do everything you can (within reason) to lend your assistance.
The bottom line is that the current Outer Space Treaty is not exactly prepared for the future reality of the colonization of Mars. As more and more people reach the Red Planet, you’d expect they’re going to want to govern themselves. We’ve seen this play out time and time again on Earth, so it won’t be surprising when the Mars colonies band together to declare their separation from Earth.
That said, as long as they’re reliant on regular supplies from Earth, they won’t be able to fully declare their independence. As long as they have interests on Earth, our planet’s governments will be able to squeeze them and maintain their dominance.
Once a Mars colony is fully self sufficient, though, which Elon Musk estimates will occur by 1 million inhabitants, Earth will have to recognize a fully independent Mars.
Space law is going to be one of the most interesting aspects of the future of space exploration. It’s really the next frontier. Concepts which were purely theoretical are becoming more and more concrete, and lawyers will finally be the heroes we always knew they could be.
If you’ve always wanted to be an astronaut, but your parents have always wanted you to be a lawyer, now’s your chance to do both. An astronaut space lawyer. I’m just saying, it’s an option.
Elon Musk has been rather outspoken in recent years about his plan to create a human settlement on Mars. Stressing the need for a “backup location” for humanity, he has dedicated his company (SpaceX) to the creation of a reusable spacecraft (aka. the Interplanetary Transport System) that in the coming decades will be able to transport one-hundred people at a time to Mars.
In addition to Musk, Dutch entrepreneur Bas Lansdorp has also expressed an interest in creating a permanent settlement on Mars. In 2012, he founded MarsOne with the intent of developing the necessary expertise to mount one-way trips to the Red Planet by 2032. And according to an announcement from the government of Dubai, it seems they aren’t the only ones looking to colonize the Red Planet.
The announcement came on February 14th, 2017, during the 5th World Government Summit – which was held this year in Dubai. In the midst of presentations by notaries like Ban-Ki-Moon, Elon Musk, and Barack Obama, Sheikh Mohammed bin Rashid Al Maktoum and Sheikh Mohamed bin Zayed Al Nahyan shared their country’s vision of putting 600,000 humans on the Red Planet by the next century – known as the “Mars 2117 Project”.
In the course of his speech, Sheikh Mohammed emphasized the UAEs commitment to space sciences and its desire to accomplish one of the longest-held dreams of humanity:
“Human ambitions have no limits, and whoever looks into the scientific breakthroughs in the current century believes that human abilities can realize the most important human dream. The new project is a seed that we plant today, and we expect future generations to reap the benefits, driven by its passion to learn to unveil a new knowledge. The landing of people on other planets has been a longtime dream for humans. Our aim is that the UAE will spearhead international efforts to make this dream a reality.”
As growing investors in the field of space research, Sheikh Mohammed indicated that this project will accelerate the UAE’s commitment in this regard. Recent accomplishments by the Emirati space program include the successful deployment of the UAE’s first nanosatellite – Nayif-1 – which was launched a day after the Mars 2117 announcement (Feb. 15th, 2017).
This nanosatellite was the result of collaborative work between the Mohammed bin Rashid Space Centre (MBRSC) and the American University of Sharjah (AUS). Its intended purpose is to provide opportunities and hands-on experience for Emirati engineering students, as well as developing expertise in the designing, building, testing and operating of nanosatellites.
And then there’s the Hope Spacecraft, a project which was commissioned in 2015 by the Emirates Mars Mission. This project calls for the creation of a compact, hexagonal spacecraft that will reach the Red planet by 2021 and spend the next two years studying its atmosphere and weather. Not only is this mission designed to provide the first truly global picture of the Martian atmosphere, it will also be the first orbiter deployed by an Arab country.
Meanwhile, Sheikh Mohamed bin Zayed – the Crown Prince of Abu Dhabi and the Deputy Supreme Commander of the UAE Armed Forces – said that the objective of the project is to develop the skills and capacities of the UAE’s space program. He also indicates that the project will benefit research institutions and advance the fields of transportation, energy and food production here on Earth.
The “Mars 2117” project will develop an Emirati and international team of scientists to push the human exploration of Mars in years to come. pic.twitter.com/5ujxvyC8As
“The Mars 2117 Project is a long term project, where our first objective is to develop our educational system so our sons will be able to lead scientific research across the various sectors,” he said. “The UAE became part of a global scientific drive to explore space, and we hope to serve humanity through this project.”
Elements of the project were showcased at the Summit by a team of Emirati engineers, scientists and researchers – which included a concept for a human city that would be built by robots. It also showcased aspects of the inhabitants’ lifestyle, like the transportation they would use, how they would generate power, how they would grow food, the infrastructure they would build, and the materials that would be used to construct the colony.
Given the long-term nature of this project, it will be broken down into multiple phases that will take place over the next few decades. Phase One will focus on preparing the scientists who will attempt to address all the challenges and concerns of sending human beings on a one-way trip to Mars. At the same time, the project calls for the creation of an Emiratis science team that will work with the international scientific community to speed up the research efforts.
Particular areas of concern will include creating spacecraft that are fast enough to ferry people to and from Earth in a respectable time frame. Then there’s the task of creating a working model of what the settlement will look like, and how the needs of its inhabitants will be met. Naturally, this will include methods for growing food and seeing to the health, safety, transportation, and energy needs of the colonists.
In the future, the UAE also anticipates that uncrewed missions will be mounted to explore the surface of Mars and locate a possible site for the future colony. In short, they are not only joining the “Mars or Bust” club, but also the international community of space explorers.
As soon as people learn how inhospitable Mars, Venus, and really the entire Solar System are, they want to know how we can fix it. There’s a word for fixing a planet to make it more like Earth: terraforming.
If you want to fix Mars, all you have to do is thicken and warm up its atmosphere to the point that Earth life could survive. You’d need to do the opposite with Venus, cooling it down and reducing the atmospheric pressure.
But it’s hard to wrap your brain around the scale it would take to do such a thing. We’re talking about an incomprehensible amount of atmosphere to try and modify. The atmospheric pressure on the surface of Venus is 90 times the pressure of Earth. It’s carbon dioxide, so you need some chemical, like magnesium or calcium to lock it away. If you can mine, for example, 4 times the mass of asteroid Vesta, it should be possible.
No, from our perspective, that’s practically impossible. In fact, it’s kind of ironic, when you consider the fact that we’re making our own planet less habitable to human civilization every day.
There’s another path to making another world habitable, however, and that’s changing life itself to be more adaptable to surviving on another world.
Instead of terraforming a planet, what if we terraformed ourselves?
Actually, that’s a really bad term. We’d really be changing ourselves to be better adapted to living on Mars. So we’d be Marsiforming ourselves? Venisfying ourselves? Okay, I’ll need to work on the terminology. But you get the gist.
Life, of course, has been evolving and adapting on Earth for at least 4.1 billion years. Pretty much as soon as life could arise on Earth, it did. And those early lifeforms went on to modify and change, adapting to every environment on our planet, from the deepest oceans, to the mountains. From the deserts to the icy tundra.
But in the last few thousand years, we’ve taken a driving role in the evolution of life for the domesticated plants and animals we eat and care for. Your pet dog looks vastly different from the wolf ancestor it evolved from. We’ve increased the yield of corn and wheat, adapted fruit and vegetables, and turned chickens into flightless mobile breast meat.
And in the last few decades, we’ve gained the most powerful new tools for adapting life to our needs: genetic modification. Instead of waiting for evolution and selective breeding to get the results we need, we can rewrite the genetic code of lifeforms, borrowing beneficial traits from life over here, and jamming it into the code of life over there. What doesn’t get cooler when it glows in the dark? Nothing, that’s what.
Can we adapt Earth life to live on Mars? It turns out, our toughest life isn’t that far off. During the American Society for Microbiology meeting in 2015, researchers presented how well tough bacteria would be able to handle the conditions on Mars. They found that 4 species of methanogens might actually be able to survive below the surface, consuming hydrogen and carbon dioxide and releasing methane.
In other words, under the right conditions, there are forms of Earth life that can survive on Mars right now. In fact, as we continue to explore Mars, and learn that it’s wetter than we ever thought, we risk infecting the planet with our own microbial life accidentally.
But when we imagine life on Mars, we’re not thinking about a few hardy methanogens, struggling for life beneath the briny regolith. No, we imagine plants, trees, and little animals scurrying about.
Do we have anything close there that we could adapt?
It turns out there are strains of lichen, the symbiosis of fungi and algae that could stand a chance. You’ve probably seen lichen on rocks and other places that suck for any other lifeform. But according to Jean-Pierre de Vera, with the German Aerospace Center’s Institute of Planetary Research in Berlin, Germany, there are Earth-based lichen which are tough enough.
They put lichen into a test environment that simulated the surface of Mars: low atmospheric pressure, carbon dioxide atmosphere, freezing cold temperatures and high radiation. The only things they couldn’t simulate were galactic radiation and low gravity.
In the harshest conditions, the lichen was barely able to hang on and survive, but in milder Mars conditions, protected within rock cracks, the lichen continued to carry out its regular photosynthesis.
It seems that lichen too is ready to go to Mars.
Methanogens and hardy lichen don’t make for the most thrilling forest canopy. In a second, I’m going to talk about what we can do to tweak life to survive and thrive on Mars. But first, I’d like to thank Zach Kanzler, Jeremy Payne, James Craver, Mike Janzen, and the rest of our 709 patrons for their generous support. If you love what we’re doing and want to help out, head over to patreon.com/universetoday.
If our current life isn’t going to get the job done, well then we’re just going to need to adapt it ourselves. Just like we’ve done in the past, with breeding and more recently with rewriting the DNA itself.
Without dramatically changing the environment of Mars to thicken its atmosphere and boost its temperatures, it’s inconceivable to think that we’ll ever adapt anything more complex than bacteria or lichen to survive outside on Mars. But if those give us a toehold, and other techniques can improve the environment, it’s possible to take incremental steps in that direction.
Even within the protected environments of Martian colonies, our current plants and animals probably aren’t up to the task.
The regolith on Mars, for example, contains toxic perchlorates that would kill any Earth-based plants that would try to grow in it. There are Earth-based lifeforms that love perchlorates and it should be possible to create organisms that will strip this toxin out of the regolith and turn it into something useful, like rocket fuel.
Earth-based plants and animals evolved in a 24-hour daily cycle, but a day on Mars is 40 minutes longer than an Earth day. We could grow plants with artificial light, but if we want to use natural Martian light, some adaptation might be required.
Perhaps the biggest risk we face to living on Mars, the one that our technology really can’t help us with is the lower gravity. We don’t know if living in 38% gravity for generations is going to be good for us. We know we can run around on the surface for a few years, but can pregnancy carry to term in this lower gravity?
We just don’t know. In order to find out safely, we’ll need to create rotating space station colonies, where we vary the artificial gravity and see what happens with animals over multiple generations with lower gravity.
If there are health problems, we can take the results of these experiments, and modify genetic code to have better adaptation to this environment. And since humans are animals too, the lessons we learn will help us adapt ourselves to be better prepared to survive on Mars, forever.
If we are able to change humans to live on Mars, we can probably do the same with other worlds. Image a far future, where human colonies on different worlds are adapted to survive there, using a mixture of technology and genetic manipulation. This will be good and bad. On the good side, human colonies will be able to survive over many generations. On the bad side, they might never be able to live anywhere else in the Solar System without going through the whole adaptation process again.
Would you be willing to change your body permanently to be better adapted to live on another world? Let me know your thoughts in the comments.
When Elon Musk announced plans to send humans to Mars, he conveniently left out one important aspect. How are we supposed to survive on a place this hostile to life? Seriously, Mars sucks, and it’s going to take some impressive techniques and technologies to make it on the Red Planet.
If you’ve watched any Ren and Stimpy cartoons, you know that one of the greatest hazards of spaceflight is “space madness”. Only exposure to the isolation and all pervasive radiation of deep space could drive an animated chihuahua into such a state of lunacy.
What will happen if they press the history eraser button? Maybe something good? Maybe something bad? I guess, we’ll never know.
Of course, Ren and Stimpy weren’t the first fictionalized account of people losing their marbles when they fly into the inky darkness of space. There were the Reavers from Firefly, that crazy Russian cosmonaut in Armageddon, almost everyone in the movie Sunshine, and it was the problem in every second episode of Star Trek.
According to movies and television, if you’ve got space madness, you and your crewmates are in for a rough ride. If you’re lucky, you merely hallucinate those familiar space sirens, begging you to take off your space helmet and join them for eternity on that asteroid over there.
But you’re just as likely to go homicidal, turning on your crewmates, killing them one by one as a dark sacrifice to the black hole that powers your ship’s stardrive. And whatever you do, don’t stare too long at that pulsar, with its hypnotic, rhythmic pulse. The isolation, the alien psycho-waves, dark whisperings from eldritch gods speak to you though the paper-thin membrane of sanity. If we go to space, does only madness await us?
If you’ve spent any time around human beings, you know that we’ve got our share of mental disease right here on Earth. You don’t have to travel to space to suffer depression, anxiety, and other mental disorders.
Once we’re in orbit, or prancing about on the surface, of Mars, we’re going to experience our share of human physical and mental frailties. We’re going to take our basic humanity to space, including our brains.
According to the National Institute of Mental Health, 18% of the US population, or 40 million Americans suffer from some variety of anxiety-related disorder. 6.7% of adults had a major, crippling depressive episode over the course of a year.
Unless we improve treatment outcomes for mental disorders here on Earth, we can expect to see similar outcomes in space. Especially once we make exploration a little safer, and we’re not concerned with our immediate exposure to the vacuum of space. But will going to space make things worse?
NASA has carried out two studies on astronaut psychological health studies. One for the cosmonauts and astronauts on the Mir space station, and a second study for the folks on the International Space Station. They tested both the folks in space as well as their ground support staff once a week, to see how they were doing.
Although they reported some tension, there was no loss in mood or group cohesion during the mission. The crews had better cohesion when they had an effective leader on board.
Isolation working in close quarters has been heavily studied here on Earth, with submarine crews and isolated groups at research bases in Antarctica.
Earlier this year, a crew of simulated Mars astronauts emerged, unharmed from a year-long isolation experiment in Hawaii. The six international crewmembers were part of the Hawaii Space Exploration Analog and Simulation experiment, to see what would happen to potential Mars explorers, stuff on the surface of the red planet for a year.
They couldn’t leave their 110 square-meter (1,200 square-foot) habitat without a spacesuit on. What did they report? Mostly boredom. Some interpersonal issues. Now that they’re out, some are good friends, and others probably won’t stay in contact, or pay too much attention to them in their Facebook feed.
The bottom line is that it doesn’t seem like there’s too much of a risk from the isolation and close quarters. Well, nothing that we’re not used to dealing with as human beings.
But there is another problem that has revealed itself, and might be much more severe: space dementia. And we’re not talking about the song from Muse.
According to researchers from the University of California, Irvine, long term exposure to the radiation of deep space will cause significant damage to our fragile human brains. Or at least, that’s what happened to a group of rats bathed in radiation at the NASA Space Radiation Laboratory at New York’s Brookhaven National Laboratory.
Over time, the damage to their brains would cause astronauts to experience a type of dementia that causes anxiety. Brain cancer patients who receive radiation treatment are prone to this as well.
During the months and years of a Mars mission, astronauts would take a large dose of radiation, even with shielding, and the effects would be harmful to their bodies and to their brains. In fact, even when the astronauts return to Earth, their condition might worsen, with more anxiety, depression, memory problems, and a loss of decision making ability. This is a serious problem that needs to be solved if humans are going to live for a long time outside the Earth’s protective magnetosphere.
It turns out, science fiction space madness isn’t a real thing, it’s a plot device like warp drives, teleporters, and light sabers.
Isolation and close proximity isn’t much of a problem, we’ve dealt with it before, and we can still work with people, even though we hate them and the way they slurp their coffee, and lean back on their chair, even though that thing is totally going to break and they’re going to hurt themselves. And they won’t stop doing it, no matter how many times we ask them to stop.
Once again, radiation in space is a big problem. It’s out there, it’s everywhere, and we don’t have a great way to protect against it. Especially when it wrecks our brains.
I seem like a pretty calm and collected guy, but if you want to see me go on an epic rant, all you have to do is ask me some variation on the question: “why should we bother exploring space when we’ve got problems to fix here on Earth.”
I see this question all the time. All the time, in forums, comments on videos, and from people in audiences.
I think the question is ridiculous on many levels, and I’ve got a bunch of reasons why, but allow me to explain them here.
Before I do, however, I want you to understand that I believe that we human beings are indeed messing up the environment. We’re wiping out species faster than any natural disaster in the history of planet Earth. We’re performing a dangerous experiment on the climate of the planet, increasing temperatures worldwide, with devastating consequences, for both ecosystems and human civilization.
Unless we get this under control, and there’s no reason to believe we will, we’re going to raise temperatures to levels unseen in millions of years.
There are islands of plastic garbage in the oceans, collected into huge toxic rafts by the currents. Colonies of bees are dying through pesticides and habitat loss.
We’re even polluting the space around the Earth with debris that might tear apart future space missions.
I believe the science, and the science says we’re making a mess.
The first thing is that this whole question is a false dilemma fallacy. Why do we have to choose between space exploration and saving the planet? Why can’t we do both?
The world spent nearly $750 billion on cigarettes in 2014. NASA’s total budget is less than $20 billion, and Elon Musk thinks he can start sending colonists to Mars for less than $10 billion.
How about the whole world stops smoking, and we spend $20 billion on colonizing Mars and the other $730 billion on renewable fuels and cleaning up our negative impact on the environment, reducing poverty and giving people access to clean water?
Americans spend $27 billion on takeout pizza. Don’t get me wrong, pizza’s great, but I’d be willing to forego pizza if it meant a vibrant and healthy industry of space exploration.
Gambling, lawn care, hood ornaments, weapons of war. Humans spend a lot of money on a lot of things that could be redirected towards both space exploration and reducing our environmental impact.
Number two, it might turn out that space exploration is the best way to save the Earth. I totally agree with Blue Origin’s Jeff Bezos when he says that we already know that Earth is the best place in the Solar System. Let’s keep it that way.
Mars might be a fascinating place to visit and an adventure to colonize, but I want to swim in rivers, climb mountains, walk in forests, watch birds, sail in the ocean.
But the way we’re using up the natural environment will take away from all that. As Bezos says, we should move all the heavy industry off Earth and up into space. Use solar collectors to gather power, mine asteroids for their raw materials. Keep Earth as pristine as possible.
We won’t know how to do that unless we actually go into space and learn how to survive and run that industry, from space.
Number three, it might be that we’ve already crossed the point of no return. There’s a great science fiction story by Spider Robinson called “In the Olden Days”. It’s about how modern society turned its back on technology, and lost the ability to ever recover.
Humanity used up the entire technology ladder that nature put in front of us; the chunks of iron just sitting on the ground, the oil bubbling out of the Earth, the coal that was easily accessible. Now it takes an offshore drilling rig to get at the oil.
These resources took the Earth millions and even billions of years to accumulate for us to use, and transcend. When the cockroaches evolve intelligence and opposable thumbs, they won’t have those easily accessible resources to jumpstart their own space exploration program.
Number four, as Elon Musk says, we have to protect the cradle of consciousness. Until we find proof otherwise, we have to assume that the Earth is the only place in the Universe that evolved intelligent life.
And until the alien overlords show up and say, “don’t worry humans, we’ve got this,” we have to assume that the responsibility for seeding the life with intelligence rests on us. And we’re one asteroid strike or nuclear apocalypse away from snuffing that out.
I don’t entirely agree that Mars is the best place to do it, but we should at least have another party going on somewhere.
And number five, it’ll be fun. Humans need adventure. We need great challenges to push us to become the best versions of ourselves. We climb mountains because they’re there.
Ask anyone who’s built their own house or tried their hand at homesteading. It’s a tremendous amount of work, but it’s also rewarding in ways that buying stuff just isn’t.
The next time someone uses that argument on you, I hope this gives you some ammunition.
Phew, now I’ll get off my soapbox. Next week, I’m sure we’ll return to poop jokes, obscure science fiction references with a smattering of space science.
If there were an Olympics for ambition, the Dutch-based non-profit organization Mars One would surely be on the podium.
If you haven’t heard of them, (and we expect you have,) they are the group that plans to send colonists to Mars on a one-way trip, starting in the year 2026. Only 24 colonists will be selected for the dubious distinction of dying on Mars, but that hasn’t stopped 200,000 people from 140 countries from signing up and going through the selection process.
There are 100 people who have made it through the selection process so far. Another five day testing phase will knock that number down to 40, out of which 24 will be chosen as the lucky ones. The latest testing will start soon. According to Mars One, most of their testing is the same as the testing that NASA does on their astronauts.
At least some of the candidates have serious backgrounds. One, Zachary Gallegos, is a geologist and field chemist who works with the Mars Science Laboratory. Here’s what he has to say:
All of this testing and narrowing down is partially funded by a reality show, which adds to the sort of carnival atmosphere around the whole thing, and makes it hard to take it seriously.
But, some people are serious about it.
In a statement, Mars One commented on the upcoming testing:
“Over the course of five days, candidates will face various challenges. It will be the first time all candidates will meet in person and demonstrate their capabilities as a team.”
“In this round the candidates will play an active role in decision making/group formation. Mars One has asked the candidates to group themselves into teams with the people they believe they can work well with.”
A human presence on Mars is a great idea, of course. But it seems fatalistic, and pointless, to choose to die there. And rest assured, these colonists are meant to die there.
Mars One addresses this kind of thinking on their website:
“For anyone not interested to go to Mars, moving permanently to Mars would be the worst kind of punishment. Most people would give an arm and a leg to be allowed to stay on Earth so it is often difficult for them to understand why anyone would want to go.”
“Yet many people apply for Mars One’s mission and these are the people who dream about someday living on Mars. They would give up anything for the opportunity and it is often difficult for them to understand why anyone would not want to go.”
Fair enough. Maybe these are the types of people who really contribute in driving humanity forward.
NASA is planning to get humans to Mars in the 2030s, and Elon Musk says he’ll do it even earlier. But they plan to bring people back. If they can provide return trips, it seems a wasteful sacrifice to die on Mars when they don’t have to. Couldn’t successful colonists contribute a lot to humanity if they were to return to Earth after their successful missions?
Mars One seems to gloss over a lot of problems. Here’s some more from their website:
A new group of four astronauts will land on Mars every two years, steadily increasing the settlement’s size. Eventually, a living unit will be built from local materials, large enough to grow trees.
As more astronauts arrive, the creativity applied to settlement expansion will certainly give way to ideas and innovation that cannot be conceived now. But it can be expected that the human spirit will continue to persevere, and even thrive in this challenging environment.
“A living unit will be built from local materials, large enough to grow trees.” A simple sentence, which obscures so much complexity. Will they mine and refine iron ore? What do they have in mind?
I don’t want to be a Debbie Downer about it. I love the spirit behind the whole thing. But it takes so much rigorous planning and execution to establish a colony on Mars. And money. How will it all work?
In the end, the whole thing is a long shot. Mars One says they have visited and talked to engineering and technological suppliers globally, and that their timeline and planning is based on this feedback. For example, they say they intend to use a Falcon Heavy rocket from SpaceX to launch their ship. But so much detail is left out. The Falcon Heavy doesn’t even exist yet, and Mars One has no control or input into the rocket’s development.
Take a look at the two sentences describing how they will communicate with Earth:
“The communications system will consist of two communications satellites and Earth ground stations. It will transmit data from Mars to Earth and back.”
I don’t know about you, but I’d like to live forever. In a few decades, the Singularity will happen, and I’ll merge with the artificial super intelligence, transcend this meat-based existence and then explore the Hubble Sphere with the disembodied voice of Scarlett Johansson as my guide. See you on the other side, suckers.
Not Elon Musk, though. He thinks we should fear our benevolent computer overlords, and make our way to Mars, where we can live out the rest of our days growing potatoes, huddling in lava tubes, and fighting a guerilla war against a spiritually enlightened and lovable artificial lifeform that really only has our best interests at heart.
In case you have no idea who I’m talking about, Elon Musk is the CEO of the revolutionary rocket company SpaceX, as well as the Tesla electric car company.
It might sound crazy, but the whole reason Elon Musk started SpaceX was that he wanted to help humanity explore the Solar System. But in order to do that, he’d need inexpensive rocket launches. And since those didn’t exist yet, he started a rocket company to provide launches at a fraction of the cost of the existing launch providers.
At the time I’m recording this video, SpaceX has already had many successful launches. They’ve successfully landed rockets back at their landing pad, and on a floating barge in the Atlantic Ocean. It really looks like Elon Musk’s plans are going to work, and we’re going to become a true spacefaring civilization.
Elon Musk recently revealed the design for what he calls the Interplanetary Transport System (ITS) – an upgraded version of his Mars Colonial Transporter (MCT). This ship, according to Musk, will ferry 100 passengers to Mars every 26 months (when the planets are closest), and says that tickets will cost $500,000 per person (at least initially).
Wow, 2024, huh? That’s pretty soon! I’m not sure if you realize how complicated and dangerous this mission will be. This guy is really serious.
The plan involves using a scaled up version of SpaceX’s Falcon rocket, known as the Falcon Heavy, to test techniques for orbiting, descent, and landing on Mars. By bolting 3 Falcon boosters together, this new launch vehicle will be capable of blasting 54,000 kilograms into orbit, or 22,000 kilograms to geostationary orbit, or 13,900 kilograms to Mars.
It’ll even send 2,600 kilograms to Pluto, if that’s what you’re looking for. So far a Falcon Heavy hasn’t been tested yet, but they’re due to start flying by early 2017.
The spacecraft payload is known as the Red Dragon, an uncrewed version of the Dragon 2 which Musk plans to send to Mars in 2018. This is a specially modified version of the SpaceX Dragon capsule which has already successfully delivered cargo to the International Space Station.
Red Dragon will weigh 10 times more than NASA’s Curiosity Rover, and this is a big problem. Landing this much spacecraft on the surface on Mars is incredibly challenging. The atmosphere is just 1% the thickness of Earth’s, so it doesn’t provide any way to slow a spacecraft down from its interplanetary flight.
In the past, rocket engineers have had to develop these complicated landing systems with parachutes, airbags, and retrorockets. But there’s limit to how heavy a mass you can land this way. Curiosity pretty much tested that limit.
Red Dragon makes it simple. It’ll be equipped with 8 SuperDraco engines built into the capsule which will fire once it enters the atmosphere, and allow it to touch down gently on the surface of Mars. If this works, there’ll be no limit to the size of payloads SpaceX can deploy to the surface of Mars. In fact, once it gets Mars right, Red Dragon should be able to land softly on pretty much any object in the Solar System.
Elon Musk does seem serious about setting up a colony on Mars. Once this first Red Dragon land on the surface, they’ll send capsule after capsule during the perfect Mars launch window that opens up every 2 years or so.
Over time, a real colony’s worth of supplies will be gathered on the surface of Mars. SpaceX will have worked out all the tricks to safely sending spacecraft to the Red Planet, and it’ll be time to send actual colonists willing to live out the rest of their lives on Mars.
We’re still not entirely sure humans can survive long term on Mars. The lack of atmosphere will suffocate you, the unfiltered radiation will fill you with cancer, and the low gravity may melt your bones. Seriously, humanity has never tried living in such an extreme environment.
Musk is so serious about this plan to send humans to Mars, that he’s stated that he’ll never take SpaceX public. The company will remain private so that it’ll prioritize the goal of colonizing Mars over any kind of short sighted shareholder cash grab.
If everything goes well, the first Red Dragon will launch for Mars in 2018. And then more will go every 2 years after that. And at some point, humans will climb into a Red Dragon capsule and blast off to begin the first human colony on Mars.
So when can we die on Mars? Musk hasn’t given us a firm date yet, but if that first Red Dragon does launch in 2018, we won’t have to wait too much longer.