Could You REALLY Survive A Trip To Mars? | Answers With Joe

  • Published: 19 August 2019
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    We've been talking about going to Mars since the end of the Apollo program. Now there's a new wave of interest in traveling to the Red Planet - but the challenges that wait for those who take the trip are bigger than most think - and possibly unsurmountable.

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    The human body is adapted for living here on Earth and nowhere else in the universe. Just a few of the problems we'll find going to Mars are:

    The effects of weightlessness. Astronauts who have been on long-duration flights to the ISS have experienced vision problems, cardiovascular issues, bone loss, elevated CO2 levels, reduced cognition, and more.

    All of these issues will be exacerbated on a Mars trip because the shortest trip to Mars would be far longer than the longest any human has ever been in space (Valeri Polyakov spent 14 months in space in 1995).

    Radiation and cosmic rays will be an issue. Almost all of the time we've spent in space has been in low Earth orbit (LEO), which is under the Earth's magnetic shield. The trip to Mars would expose the passengers to all the solar radiation and comic rays that our magnetic shield blocks, and studies have shown that the 24 Apollo astronauts that flew to the Moon showed a 5x greater incidence of cardiovascular disease later in life.

    Immune system issues. Studies have shown that astronauts' immune systems are reduced when weightless and bacteria become stronger at the same time. Outbreaks in the enclosed environment on Mars would be an issue.

    The conditions of Mars. Mars only has 1% of the atmosphere of Earth and even that is carbon dioxide, which we can't breathe. It also makes temperatures vary widely. Plus the soil is filled with perchlorate, which affects our endocrine system and can cause breathing problems.



    Video of astronauts landing:
  • Science and Technology Science and Technology

Comments • 3 801

  • Joe Scott
    Joe Scott   4 weeks back

    So, it has been pointed out - like, hundreds of times - that the image of Mars used in the first couple of minutes is actually the moon and not Mars. This was not some deep symbolism or a prank, it was an honest mistake. Probably a misnamed image file that I just didn't notice. Apologies for any confusion. I shall burn my face with acid in penitence.

    • Kate Flynn
      Kate Flynn  3 days back

      What ! No ! Don't do that.

    • Poppy L
      Poppy L  4 days back

      Jason Grant ...why

    • Mike Silletti
      Mike Silletti  4 days back

      "Mo Money Mo Problems" The Notorious B.I.G.

    • PafMedic
      PafMedic  5 days back

      patlalrique Its Human Nature To Explore.

    • ecogreen 123
      ecogreen 123  6 days back

      you would think that cryogenic chambers being spun in a ring through the duration of the trip would fix most of the problems discussed about getting to mars.. probably not.. idk

  • Boz Fone
    Boz Fone  1 hours back

    Pete Conrad made it all the way to the moon and back, then died doing the speed limit on his motorcycle. Gus, Ed and Roger lost their lives in a dress rehearsal, and several have either burned up or crashed after otherwise successful missions. It's crazy to think all deaths have been right here on Earth, but the fact is that humans are fallible - and mistakes and equipment failures can happen anywhere and everywhere. Have we even tried launching ANYTHING from Mars to Earth yet? And that distance will require extreme weight conservation, meaning fewer redundant failsafe systems among literally millions of individual components. I'm a huge fan of anything space related and hope they DO succeed - but I'm pretty convinced that the first explorers will be martyrs, not heros.

    • Conrad Angel
      Conrad Angel  5 hours back

      Those fools , we are in the middle of destroying our home and looking to fuck up another planet, ridiculous

      • Winter Rain
        Winter Rain  6 hours back

        cyborgs anyone

        • Amy Barnes
          Amy Barnes  7 hours back

          ``If God Had Meant Man to Fly, He Would Have Given Him Wings.`
          Lot`s of presumptions in your presentation; all negative.
          Acceleration is not distinguishable from gravity - per Einstein.
          Artificial gravity can be made by spinning or rotary motion.
          Going to mars is not going to be easy.

          • r vanden
            r vanden  8 hours back

            Based on what I've seen of Mars (from various NASA rovers) and of the Moon (Apollo footage) it is, for me, a no-brainer that it's the Moon that is the more appealing place. Three reasons: 1) Distance. The short distance to the Moon affords tourism; Mars does not. 2) Atmosphere. The thin atmosphere on Mars is so thin as to be useless in providing protection, while at the same time allowing for dust storms that would not be pleasant for humans. 3) Gravity. 38% of Earth's gravity on Mars versus 16.6% of Earth's gravity on the Moon. I think that, from a tourist's perspective, 16.6% would be a lot more fun than 38%.
            People talk of colonies, of terraforming, of science and industrialization. In my view it's tourism on the Moon that, at least in the short-to-medium term, will be the big thing for humans who wish to live on bodies other than the Earth. It's more economically realistic and will be therefore more scalable, and have much more of a near-term impact than colonizing Mars. How realistic would a two-week vacation to the Moon be? Very, in my opinion. A few days to get there, a few days to get back, live in a lava-tube for a week to reduce radiation, coming to the surface to play golf and hop about; drive around in dune buggies. Sounds like fun! Mars on the other hand would be a royal pain in the ass on so many levels. This video has done yeoman service in showing just HOW MUCH of a pain in the ass it would be. Thanks for making it!

            • Shane Wright
              Shane Wright  10 hours back

              I've been there. It ain't all that.

              • America Lost
                America Lost  13 hours back

                Could somebody please explain to me NASA describing the moon as becoming way-station on the way to Mars? Are they meaning just using the moon as a place to learn the ups and downs of space colonization? Because otherwise isn't a way-station some place to stop and refuel, restock, etc along the way... And what would be the point of using the moon for that when it's pretty much still the beginning if the journey?

                • Mario
                  Mario  1 days back

                  In the times of the great explorers people like Magellan traveled for way longer then a Mars mission on a tiny boat with over 150 people on it. Living of salted meat and booze and with no antibiotics or any real medicine. Yes people died, that's the price they had to pay and people still were willing to do that. The Mount Everest is covered with the corpses of mountain climbers and still hundreds of people try to climb it each year. If you start a Mars Mission were there is a high probability that not everybody makes it back you will still find a 100 times more people then you need willing to take that risk. A mars mission does not have to be somehow 100% safe to start it.

                  • dragonfly
                    dragonfly  1 days back

                    i feel like i should send you an apple . you have become my favorite teacher .

                    • Underwater Laser
                      Underwater Laser  2 days back

                      Physics Girl did a video on a related subject

                      • Angelo Jamaica
                        Angelo Jamaica  2 days back

                        could you really survive past 70? There are no answers with Joe, Joe will no longer exist.

                        • Gacheru Mburu
                          Gacheru Mburu  2 days back

                          My favourite video.

                          • Cro-magnon Gramps
                            Cro-magnon Gramps  2 days back

                            hmmm wonder what corporate agency you have sold out to, to produce this FUD drooling idiocy... You have only relied on research and information that suited your thesis...

                            • Kyle James
                              Kyle James  2 days back

                              Yeah I definitely would like to see a video where you've researched possible ways we can mitigate the many dangers of getting to mars and how feasible they are.

                              • Cro-magnon Gramps
                                Cro-magnon Gramps  2 days back

                                Terraforming Mars with Issac Arthur...

                                • John Gordon
                                  John Gordon  2 days back

                                  The same with the moon, nobody with any has the right to go there, so space of our planet is a stupid way to get free money from the government who want to own the world!

                                  • Nelson Robert Willis
                                    Nelson Robert Willis  2 days back

                                    You have me convinced; a trip to Mars sounds like an absolute nightmare. I think that I'll opt for a trip to Ohio instead.

                                    If a hunan voyage to Mars were ever attempted, I think that there would have to be a bunch of robot missions there first in order to transport supplies which the humans would need for their time on Mars and for their trip back to Earth. That would make more sense than trying to carry everything needed for the entire round trip all in one craft on the trip from Earth to Mars.

                                    • kim okla
                                      kim okla  2 days back

                                      After Moon fun, our Visitor - Guardians warned us. The space dangers are Huge, way too huge for Humans to handle this century.
                                      They have helped us for centuries, warninf is also No Nukesm no Nukes in space, moon is a current base for ET,
                                      Joe you know, "stay away" foolish humans!!

                                      • Mark Vetter
                                        Mark Vetter  2 days back

                                        No problem.

                                        1. Set up moon base
                                        2. Start lunar mining to source materials out side of earths gravity well
                                        3. Capture some asteroids, by landing automated thrusters, and inserting in to Lunar orbit, for main ship, and additional materials
                                        4. Hollow out a large cylindrical chamber in a large asteroid, attach thrusters, and build habitation module in the cylinder.
                                        5. Spin the asteroid up to a centrifugal force needed to mimic earth gravity, and head for Mars.

                                        You now have an ugly ass, but practical Mars vehicle, nice thick walls to prevent radiation, and rudimentary artificial gravity. This will be the mother ship remaining in Mars orbit, you just take the lander down to the well stocked and comfortable habitat that the automated pre-human missions have built for you.

                                        See peace of cake.😁

                                        • Mark Vetter
                                          Mark Vetter  10 hours back

                                          Saumya Cow it is getting “cheaper” to launch stuff from earth. The gravity well is a challenge but a relatively small one. The big benefits of the hollowed out asteroid is the large space, thick walls, and simulated gravity. It’s obviously not really easy, and has some real challenges, but I think it might be the best, and safest way to go to Mars. Cheers.

                                        • Saumya Cow
                                          Saumya Cow  22 hours back

                                          A lot of crazy schemes to get to Mars center around the presumed difficulty of getting things out of Earth's gravity well. Now we can launch stuff to orbit (relatively) cheaply so there is far less incentive to do things like mine the moon. We now have the freedom to simply put enough mass (and fuel) into orbit and go from there. Do it simply but in style with (lots of) ordinary chemical propulsion.

                                      • El Ungaro
                                        El Ungaro  2 days back

                                        Loosing your mind by the time you get there can seriously f up the mission 🤪...... Good grief..... How can we prevent that 👀....? We got a lot to learn before we make that trip....... Let's just do the moon 🌜for a few hundred years first... 🤔

                                        • El Ungaro
                                          El Ungaro  2 days back

                                          Bummer........ Now I'm not so giddy selling my house and join the starship crew for mars dam it....😖 😁
                                          Good information...... Thanks 👍 👍 👍

                                          • kim okla
                                            kim okla  2 days back

                                            ISS is cool for 3 months or Virgin Galactic for tours

                                        • Wilhelm Sarasalo
                                          Wilhelm Sarasalo  2 days back

                                          We won't be going to Mars because it is easy, but because it is hard.

                                          • Bobby Harper
                                            Bobby Harper  2 days back

                                            Mars is a jobs program for college grads.

                                            • steve anderson
                                              steve anderson  2 days back

                                              Speaking of the moon, ever notice that all of the moons craters are wide and shallow? The moon is covered in a thin layer of crust over a hard, strong shell. During Apollo 11
                                              when we left the moon we left a listening device there. We dropped part of the ship back to the moon and it rang like a bell for 50 minutes. And another thing, one side of the moon always faces earth. The moon is the only thing in space that does that. There are a couple groups of people that mention in their ancient lore that there was a time before
                                              there was a moon in the sky. I think the Bible mentions this also.

                                              • kim okla
                                                kim okla  2 days back

                                                Correct steve, many cultures for thousands of yrs, BELL ringing tested twice!!

                                            • steve anderson
                                              steve anderson  2 days back

                                              Come on Joe, everyone knows the moon is only 238,857 miles away. If the moon was 250,000 it would not be exactly the same size as the sun as we see it from earth.

                                              • akronymus
                                                akronymus  2 days back

                                                @ steve anderson
                                                Moon's orbit is not an exact cycle. The value is between roughly 230000 and 250000 ... if you want to measure the distance in land miles. In nautical miles it is between 200000 and 220000, in km between 360000 and 400000.

                                                By the way, the first historically handed down measurement of earth's size 2250 years ago was very exact about the determination of latitude of the measuring-points, but there is a lot of confusion about the actual size of the 'stadium' used in the result for earth's circumference (but still a lot better than the values Columbus used). So the 'mile-mile-km' confusion isn't new at all.

                                            • jbirdmax
                                              jbirdmax  3 days back

                                              I don't care if I die on the way there! At least I would die knowing that I did my best.
                                              If I made it to Mars and by some miracle I made it back to earth, I would only hope
                                              we learned something new from it.
                                              EDIT: Wouldn't we use some kind of centrifugal space ship to go to mars? I mean

                                              we would likely have someone waiting in orbit for us right? They would keep the ship

                                              ready for our return, and the centrifugal design of the ship would help keep everyone
                                              in shape and healthy.

                                              • Leisa Irwin
                                                Leisa Irwin  3 days back

                                                Just subbed. Avud watcher. Bring it on.

                                                • Robert Pryor
                                                  Robert Pryor  3 days back

                                                  How about Uranus?
                                                  Don't even trip.

                                                  • Arkady Bogdanov
                                                    Arkady Bogdanov  3 days back

                                                    Surely you could use a tether to rotate a hab with the engine block to get gravity? And use the water supply in the walls as radiation shielding?

                                                    • Peter Cohen
                                                      Peter Cohen  3 days back

                                                      Don't send one capsule when you do a Mars mission, send two. You get the redundancy of two systems for safety, but more importantly, you tether the two capsules together and spin. Voila! Artificial gravity. Problem solved.

                                                      • Rodel Wade
                                                        Rodel Wade  3 days back

                                                        Gosh i guess if we stuck with this negative perspective of going to mars i suppose we would not go... thank goodness we have brave people nasa and other scientist we will address each one of these issues AND WE WILL GO TO MARS....

                                                        • JustKeith
                                                          JustKeith  3 days back

                                                          Would communication be disrupted if the sun were in between the two planets?

                                                          • bimblinghill
                                                            bimblinghill  12 hours back

                                                            Yes. They would need to use a relay, e.g. a satellite in the same orbit as Earth but 90° away. This would increase the delay.

                                                        • Vishal Raju Vishal
                                                          Vishal Raju Vishal  3 days back

                                                          If we feel inertia in car when it accelerate then definately we will have artificial gravity if we countinuesly accelerate with 9.8m/s2 during trip to mars half way and deacclerate with -9.8 .just an idea .

                                                          • Réjean Dumouchel
                                                            Réjean Dumouchel  3 days back

                                                            You say it yourself, in solar system, out of earth, we will live underground. But which space agency or private company acknowledge it seriously and concentrate on the objectives of finding and make it habitable, underground cave or lava tube. We loose a precious time and resources to only focus on the surface of things.

                                                            • BooperNova the RainbowWolf

                                                              Now think about extraterrestrial life... And the feats between a type 1 and type 2 civilization...all this information would be does our technology need to evolve? What laws of physics would we have to defy?

                                                              • gort742
                                                                gort742  3 days back

                                                                The international space station is actually only in low earth orbit an average altitude of 248 miles . To go beyond that would put it in the dangerous Van Allen Radiation Belt area , which has 10 x the radiation that would kill a human . Until we find a safe way of getting through this zone and we also discover how to create artificial gravity on space ships , we are not going anywhere soon .

                                                                • Daryle Harris
                                                                  Daryle Harris  3 days back

                                                                  Joe...just discovered you and have subscribed! What fun! I'm enjoying your videos and looking forward to more! Thanks!

                                                                  • Garry Sekelli
                                                                    Garry Sekelli  4 days back

                                                                    this guy believes in the moon landing so all his other statements can automatically be discounted as bullshit.

                                                                    • Hombzy
                                                                      Hombzy  4 days back

                                                                      The Sun is a deadly Lazer.

                                                                      • GlueC
                                                                        GlueC  4 days back

                                                                        Great. Where do I sign up?

                                                                        • Garry Sekelli
                                                                          Garry Sekelli  4 days back

                                                                          and the worst part is that there is no beer in space.

                                                                          • Steven Homan
                                                                            Steven Homan  4 days back

                                                                            I agree with you. Some of the issues are currently insurmountable. The psychological matters aside.
                                                                            The space race was simply political posturing to prove that missile's were reliable systems. The rest was vague science.

                                                                            • Jon Lynch
                                                                              Jon Lynch  4 days back

                                                                              Well, I'm doing it. I'm really going... to let embedded advertising work on me. I'll be subscribing to Curiosity Stream, thanks to Joe.

                                                                              • Get LIT
                                                                                Get LIT  4 days back

                                                                                Unless we can harness gravity as we wish i don't think we can really colonize Mars or any other space thing

                                                                                • theldun1
                                                                                  theldun1  4 days back

                                                                                  Supplies and habitat could be sent ahead and placed in orbit now in preparation for people to arrive. Why are we not doing that????

                                                                                  • akronymus
                                                                                    akronymus  2 days back

                                                                                    @ theldun1
                                                                                    The heaviest thing successfully 'we' landed on mars has the mass of a very light car like the Ford T ... or 1/10 of Apollo-17 lander (car and crew included).

                                                                                • 666Maeglin
                                                                                  666Maeglin  4 days back

                                                                                  Are the bacteria becoming more virulent or is you immune system becoming lazy and weak?

                                                                                  • Mr. Observant
                                                                                    Mr. Observant  4 days back

                                                                                    So... hear me out. WHAT IF~ we just fake the trip? Film it, hire and train some actors, pull off a stunt so "hush-hush" that even the actors themselves are convinced they really went. We shoot them up into the sky, they live up there for a few months, land them in the desert somewhere, feed them all kinds of signals, convince them they're on Mars. Then they take off again, float in space for a while, they land in the ocean [as heroes] Whole thing is televised and broadcast to the excited masses. And BOOM! A new age of technological achievement! Yaaaay! What effect would that have on the world? [Assuming we do it well, and no one ever questions it.]

                                                                                    Those who DO question it, well, haha, they're just stupid conspiracy theorists and science deniers, what do they know? :-D No one will believe them, aside from crazy people who have cheap websites with glittery GIF's and terrible font layouts.

                                                                                    • Mr. Observant
                                                                                      Mr. Observant  4 days back

                                                                                      I guess... the cost of faking it would be so high though, that we may as well just actually go instead. Right?