Science vs Cinema: THE MARTIAN


I’m Andy Howell. I’m in astrophysics
professor but I’m also a huge film geek. So many of my students get huge misconceptions about science from movies.
I want to see a show that celebrates movies that the science right and correct the
misconceptions of movies that get the science wrong. Movies you’re about to get schooled! This is Science Vs. Cinema. This episode: The Martian it doesn’t cooperate astronaut Mark
wanna get the SmackDown put on him by giant dust storm on mars its crew thinks
he’s dead and asked to abandon it is left stranded with no way of
communicating with nasa and only enough food for a few months did the movie get
the science right we’re going to the world premiere at the Toronto
International Film Festival ask the filmmakers how they approach the sci-fi
most his fantasy owners would attract this is the total reality of the
situation changes to the screenplay for a little over the bus I talked to no one ok with that to talk to the real experts
at nasa to see what they thought he was really working hard to get the science
right now not everything is right in the thick a place that is pretty benign to
rain but they actually happened choose or anything it’s pretty rocky you do get
dust storms on mars but nothing quite that dramatic along the way I’ll be
grading the film on everything except this thing is inflating my pants with
see what happens when we introduce the martian wind its ok to cheat a little
you need to tell a better story but first let’s take a closer look at the
film’s real villain bars or century study Mars the only planet where life
may exist now the screen creates for you the fascinating frightening spectacle of
the first flight to Mars we have been expecting a little more
than a hundred years ago even top scientists sincerely believe that there
were aliens from the planet next door and in movies it was a crazy funky place bombardment of Mars by attacking
humanoid to a marsh speak to me right now more than ever before and now
we can take that back to the shit out of the martian started as a science fiction
book by Andy we’re facing the candidates all my life I love the book for its
scientific detail but would any of that be preserved in the movie I asked that
question to screenwriter Drew Goddard I think the biggest decision we made early
was not gonna done this movie down I said that the studio if we don’t get
down I don’t have a movie drew has great intentions but did the movie really get
the science right now we’re celebrating your mars bar travel is no joke it’s so
far away it takes radio signals traveling at the speed of light 2004 and point four minutes to get there
from here so communication is more like a text message with a busy friend that a
phone call incoming class over this but it’s a major plot point in the martian
are you feeling the third two minute round-trip communications time is one
exactly when roundtable of snap you have pretty space travel is much lower the
spaceship in the martian the Hermes uses ion engines we’ve never actually used
those in human spaceflight but nasa’s unmanned mission dawn use them to visit
the asteroid Ceres to really efficient letting you minimize fuel and allow you
to constantly accelerate so that’s exactly what you need for a mars even still it might take something like
five hundred days for a round-trip seriously how do we get there well basically point of bird in that
direction you eight hundred and fifty days and 36 million miles later we
should be at mars that loan in weightlessness wreaks havoc on your body
so you want them to have artificial gravity in the demo space at the University of
California Santa Barbara on the way to mars the astronauts live in this giant
wheel that’s giving them artificial gravity how does that work well we can
use this trick that every kid knows the truth water in a bucket if we turn this
bucket over it would fall out because the gravity but if you spin it around we
can generate acceleration that can counteract gravity see if it works right
look at that the acceleration of me swinging it around is actually keeping
the water in place counteracting breath by spinning faster
I get more gravity longer get more gravity so the martian is realistic to
create artificial gravity in a giant wheel did they get it exactly right when
anywhere saw the trailer he did some calculations so when the trailer first
came out I did a bunch of trees frames federated gets kate mara so that I can
calculate the previous I estimate the radius of the wheel is about 8 cake
mauro’s 442 figured out they would actually have a point 2 G’s but it
doesn’t matter the point is if they have gravity which is the main problem now
let’s talk about sticking the landing when you want to land on Mars this is
the guy this is NASA’s guy for getting a spacecraft safely down to the surface to
land on mars you have to go through the atmosphere very very quickly because the
vehicles flying in from deep space as it comes in it’s going very very fast the
air is very very thin there’s enough pressure and heat from Tennessee didn’t
have a protective heat shield your space craft wouldn’t melt it’s coming in so
fast that a normal parachute would rip to shreds see you need to design a very
special lightweight but very strong parachuting handle these the forces of
opening in those high speeds but that isn’t enough in fact the Curiosity rover
which landed with a parachute and then rockets and then a sky crane and as for
the landing site in the martian they actually landed a real place as a dolly
open Asia said a good spot we talked to planetary geologist Katie step Morgan to
find out you want to pick a place that is pretty benign to rain but they
actually happened to choose landing site that’s pretty rocky it’s got some small
mountain like creatures but as a geologist don’t you want to go to the
cool rock so of course but you know that’s always the constant interplay
between the scientists who want to go to the often the most dangerous looking
places and the engineers who want to make sure that everybody stay safe and
to do a really good job of capturing the current state of the art technology and
that’s what I think I didn’t have the same principle be all in all the mission
to and from mars in the martian is extraordinarily accurate next topic the dust storm in diameter
carrying 24 points 41 degrees that’s shocking right towards US based on
current escalation as to enforce of 8,600 the movie opens with a violent
storm that endangers the whole crew that plausible there are dust storms on mars
and sometimes they can engulf almost the whole planet but that’s a little bit
deceptive the atmosphere of Mars is only about 1% as dense as Earth’s atmosphere
to simulate that got some court dust this is going to represent a really fine
grains and on mars and I’ve also got some salt that’s gonna represent the
bigger thicker lamar’s ok and we’re going to mix up our martian sand here ok
we’ll see what happens when we introduce the martian wind now are Martian dust
into our martian wind the really fine grain dust got along
really far assault just fell straight down the thin
Martian atmosphere can blow around really find us but it can’t really blow
around people the only thing that he had to come up
with that was a little bit on the edge was this very big wind storm that
started the movie I mean if you delivered concessions from the beginning
couldn’t really happened doesn’t have enough it’s it’s so thin it wouldn’t
actually damage anything would have to be going ten times faster than Earth’s
atmosphere to get the same physical force so there is a 50 mile an hour wind
would have to be 500 miles an hour on mars it’s a man versus nature story I
want to be sure to get the first time as a college professor I can’t condone
cheating unless the answer you come up with is better than the right answer onto the weighty subject of gravity is only 38 percent of Earth’s gravity to
see what that would look like I got a gravity treadmill alright so this thing is inflating my
pants have to lift off the treadmill basically a really jump up in the air
with every step basically you can jump higher even look different why didn’t they try to show that in the
martian I asked Ridley Scott did you talk about trying to portray more mars’
gravity i mean as refuses is very heavy so the mathematics roughly it’s kind of
more or less just under normal movement that’s where we made a decision so we’re
not in a place where we can do i mean we can do weightless walking around without
a suit and it still looks like he’s on earth so the real answer is it was just
too hard to shoot but imagine how much more immersive the film would have been
with that little too much space suits are those slim fit suits realistic not
really even on mars you need a puppy pressurized suit in a backpack with
breathable oxygen in climate control met a man should have been a little lighter
on his feet even in a suit the subject of gravity really wish I would’ve gone
that extra mile when you gonna do with the rest of the
science of course the different generations of Mars rovers over and we’ve got the Spirit and
Opportunity class rover and then the big one that doesn’t even fit in here the
curiosity to meet the people exploring Mars rover on the block right now is
curiosity the rover has 10 instruments 17 cameras has a laser and has a true
it’s an amazing robot so these are the tools we use to drive curiosity on the
surface of mars we would love to be able to drive the rover like anybody would
driver of a controlled car but the time delay between Earth and Mars can be
anywhere between a few minutes to 20 minutes we have to do is plan out a
whole days worth of activities and we can plant them out singly them here so
we can make sure that whatever commands we send the rover safe when the river
gets those commands it execute someone drives on the surface of mars for the
sake of video game it’s it’s kinda like a video game to really boring video game
until you think about what it is you’re actually doing that it’s amazing
controlling a robot on exactly so yeah we have a pair of stereo cameras on the
massive the rover with those stereo images you can actually see mars in 3d
so there’s some 3d view of mars to be able to evaluate where go with these Rovers we can stick our
heads inside and look out the windows ISO the rover we can use the robotic arm
as if it was a very own arms that rover are really extension he’s one of my
favorite parts about this rumors that anybody to seize the right size so the
pictures that we take to put on the web as soon as they come back down der so
anybody anywhere in the world can be one of the first people to see a new place
on Mars Mars for all of us feels like it’s not a foreign place it feels like
it’s reading right next door and when you look at the pictures that come back
you look at the bright light of us sunny summer day on mars you really feel like
you are there and it’s just right over there are a lot of people don’t know is
that nasa is developing human Rover for markers that looks a lot like to win the
martian is a pressurized cabin so astronauts don’t need a spacesuit and
has six sets of independent wheels these even let it go up forty degree incline
on the subject of space cars the martian his inspection how it was great that’s
one of the reasons I really enjoyed it because it was believable it’s something
that could actually happen mars egos and cobbles apart pieces of
the old rover’s we know that those Rovers are really there could maybe do
something useful with them so it was so fun to see his ingenuity and what’s
there branded on mars with no way of
communicating with earth and without enough food or water to survive mark
what he has to get creative the book is all kinds of cool
calculations and chemistry the movie doesn’t go into nearly as much detail
but it does preserve the end results of what’s in the book of the same on
anything I doubt I trust that if I love it I’m gonna protect and with this book
I loved it so much she was old are predicting the sole look at this movie
first 20 minutes as a man by himself farming in his own still cannot believe
that they heard that away let’s put that up to you grow potatoes in space dirt
mars used to be a much warmer and wetter place that had all the ingredients that
would have been necessary for discovery was discovering out a habitable
environment on the surface of mars sometime in the past we think there
might have been awake they’re awake with pretty neutral happy chemistry in which
life could have existed if life had been there her standing at mars is changing by the
day today we’re going to announce that under certain circumstances liquid water
on Mars even with the recent announcement of flowing water I’m not
sure if you could still grow plants and the martian soil but I love the fact
that our quad is a botanist if anybody could do it he could do you buy and he was a big part of the greatest
body on this planet that was what was really attractive about the character I
have to listen to anymore got off he kept his sense of humor in
this incredible logical kind of practical solve one problem at a time
type of thinking and it’s what these guys can actually do it amazing I’m
sitting next to mark what he is doing exactly what a good engineer or
astronaut we do take the most important problem solved at first then saw each
other one in turn on the topic of space MacGyver during the martian doesn’t just
past the best green since apollo thirteen houston we have a problem now
the subject that’s the biggest pet peeve of mine in any movie about space alien
poking scooby-doo characters and Prometheus oil drillers and I’m again inexperienced and suicidal medical
doctor and gravity or even the randomly homicidal Matt Damon himself in
interstellar not about my life always tries to inject artificial drama by
making their astronauts both crazy and stupid there is a moment they’re cool under fire it teamwork psychiatric evaluation and choose teams
whose personalities mesh the martian gotta write the crew here works together
to joke around and they care for each other and they don’t have stupid fights
for no reason Ridley Scott that the scoop street from
this just called him up and they said everybody takes Ridley’s call you have
to look at the interactions between headquarters in The Associated senators JPL is running the robotic missions and
Johnson in the crew I live that every day all that communication causes
conflict because it raises different opinions different approaches and
somebody’s gotta be in charge and somebody’s gotta say we’re gonna do it
this way and you see that in the movie you are ready I’m the director of nasa
what would you do if you were daddy and you had to make the decision between
leaving Matt Damon there or sending people back and field everybody sees focused on different
priorities hashed out and come to the right decision in the ends I also loved
that they didn’t portray nasa a stereotypical nerds did you go on a tour
GPS I did it found its way it was just that threadbare feeling about life it’s not
just that it’s portrayed in these things we had eighty days before scientists
regular people their men and women and they come from all different cultural
backgrounds one thing I’ve seen since starting on mars is that the fraction of
women is striking you see a lot of women scientists a lot of women in operations
a lot of women in leadership roles and I personally found that very inspiring to
see you don’t think that’s your and this is exceeding achieving the goals you set up your cat
scans base write that down ok I wonder if things look a little too
hollywood hermes is much bigger and much cooler looking in the film that I
imagine it but the rule of us has to be cool the astronauts and NASA employees all
look like movie stars and the set all of what they were made by designers instead
of Engineers that’s a forgivable sin and abandoning the tired old cliches and in
taking the effort to portray nasa astronauts correctly it’s a small step
for this movie but it’s a giant leap for mankind all right let’s take a look at the final
report card the martian bailed on its portrayal of martian gravity cheated on the dust storm but it gets
high marks for the betrayal of space travel realistic Rovers have scientifically
accurate portrayal of NASA and the afternoon overall is a huge win for
science science fiction is extremely important in our culture and some
teachers see something he knew that this one this one is pretty good student but
actually it was really cool story for and I thought you know I want to do
that I want to see that just about every scientist I know got into their career
because of science fiction Blade Runner absolutely 2001 a Space Odyssey
unbelievable the big daddy of science fiction reduced but I watch 17 2001 it
was a threshold of nowhere to a science fiction movie about a new release got a
job favorite action movie dr. Strangelove
come on that impacted me personally the most would-be space training ground favorite science fiction movie is
actually only after Mars rover so he’s hard not to love because you look at him
and he seems very familiar instruction really projects vision of the future something that we aspire to whatever
really enjoyed about the book and the movie is how close to reality it can be
its just around the corner for its well it’s funny you know i jus got her two
adopted the screenplay when i SAT and talked with him it was the first thing
he said he said this is why I want this to be a love letter to science that’s
what this movie is and I think that he’s part to that because he has that same so
those who love for science I don’t think anybody has ever made science and math
look sexier and more interesting and more thrilling let someone who really do and we had a
long conversation about that and how that’s a really wonderful thing to put
out into the world right now and I don’t have any lofty expectations but I do
hope that some kid see it and he got on the signs and enjoy it and maybe it’s
one thing many other things in their life that
might push him in that direction you know I really think that that indeed
will happen you know we’re talking about the mars generation you know around when
we landed on the moon lunar generation that was pretty spectacular but when we
landed curiosity on Mars we had the world’s attention and that’s the mars
generation that’s the inspiration that will propel our economy forward by
bringing them to scientists and engineers and move in the book is a
fabulous opportunity for us to celebrate that the first human to set foot on mars
might just be a kid in a movie theater today was inspired to study science and
become an astronaut all because of the martian

100 Comments

  1. majidi

    February 17, 2019 at 1:02 am

    they did not know about the toxic martian soil at the time it was filmed I take it. No potatoes….

  2. kegusaga Nekosa

    February 18, 2019 at 3:43 pm

    can you do a video on how hard it would be to build a space bridge to the moon and mars or do you have another channel for that

  3. 18661873

    February 18, 2019 at 5:07 pm

    The most unscientific thing about The Martian is that no humans (not even women) like disco music.

  4. k34561

    February 23, 2019 at 4:27 am

    Slim spacesuits have been researched by Dava Newman (MIT).

  5. Ascher Lafayette

    February 23, 2019 at 7:41 am

    acceleration? Ii think you mean centrifugal force

  6. Leo Bush

    February 26, 2019 at 2:30 am

    Real astronauts are the exact opposite of "crazy" because they are so close to Earth. Like the ones on the ISS, if something goes wrong they can escape easily by taking the escape pod. But in Interstellar, Dr.Mann has gone crazy because he is so far away from Earth with a very low chance of returning back. Or from Armageddon, one of the crew members go crazy because he and his species are about to go extinct by the giant asteroid.

  7. Mark Sanford

    February 26, 2019 at 8:40 pm

    What scene is that at 5:42? I don't remember Mark being in the Hermes until the end?

  8. Matko Smat

    February 27, 2019 at 12:07 pm

    Hey, thanks for an awesome vid! Keep them coming!

  9. PapaGeorg10

    February 28, 2019 at 5:32 am

    The Martian had a few misteps but they did a great job overall. I believe they made an honest effort to make a scientifically believable movie. It's way better than Gravity. I'm surprised you didn't talk about Matt Damon poking a hole in his suit for a thruster

  10. Issac Branford

    February 28, 2019 at 3:13 pm

    My God. The first demonstration is on centrifugal force?

  11. curtisharrell

    March 2, 2019 at 9:21 pm

    Ki-LOM-meters, not 'KILL-O-METERS', which sounds like a frag meter in a 90s style first person shooter. (ST:NG fan.)

  12. Daniel Erbes

    March 3, 2019 at 12:07 am

    One inaccuracy i'd like to point out is i don't think CNN would make this a frequently covered story I think they would be too busy assembling a panel on "racist cops in Indianapolis' and Pence praising them at one time to notice a astronaut going through technical especially an astronaut who's white, heterosexual, and male.

  13. Dick Kurtz

    March 6, 2019 at 6:21 pm

    Another cheat was the emergency launch. Anybody who plays KSP knows unless they landed on the equator they would only have a few minutes each day where they could launch and not die.

  14. TylrM

    March 7, 2019 at 12:37 pm

    R.I.P Odyssey :'(

  15. JPVD 9669

    March 8, 2019 at 5:57 am

    11:00 not true

  16. Chris Ruwoldt

    March 8, 2019 at 11:57 am

    The big fail of both the book and the movie is this – in order to establish the Martian base as depicted it would have taken several supply missions. Where are those landers? Presumably they also took off in the lander the crew used to descend to the surface, or it was a separate vehicle to the one they used to get back to Hermes. So there must have been other landers that all would have had at least the ability to communicate with earth. However all these are conveniently left out of the book and the film.
    The problem is repeated when Whatney travels to Aries for the subsequent mission. The subsequent missions crew get to the surface how? On a second Aries. So there are always two Aries on the ground when a base is crewed.

  17. Finlay Humberstone

    March 9, 2019 at 8:30 pm

    One of my favourite films

  18. wab1954

    March 10, 2019 at 4:14 pm

    There are more problems that is talked about here.

  19. ΕΥΘΥΜΙΟΣ ΜΑΛΙΑΡΙΤΗΣ

    March 10, 2019 at 8:50 pm

    i hate feminist videos

  20. Ziemowit Brewczyński

    March 13, 2019 at 2:22 pm

    Slim fit space suits not realistic ? Puffy suit needed? Really? Check out SpaceX suit then!

  21. ChrisCooper312

    March 13, 2019 at 2:27 pm

    I think the portrayal of the astronauts and NASA personnel was one of the most realistic ever. Even Apollo 13 and The Right Stuff, both great films, took more liberties than this in that regard. I think another thing the film did well though in the characterisations what that it made the characters unique and interesting, whilst keeping them realistic.

  22. Simone Scarpa

    March 15, 2019 at 1:49 pm

    With all the UV coming to Mars given by its lack of athmosphere would definetly damage people staying there for a long time

  23. CPFC_Jello

    March 15, 2019 at 5:22 pm

    Is it just me or does he look like Will Ferrell from the side?🤨🤨🤨

  24. Mariusz Fidzinski

    March 15, 2019 at 6:09 pm

    style of editing makes this 'collage' non-vieable, I mean – null esthetics and non for normal human being – what is this, a trailer? a commercial? or you're trying to explain some quite complicated and sophisticated connections? I say NO! to idiots…

  25. CeNToN zn

    March 17, 2019 at 6:21 am

    What if astronauts brings legos in mars?

  26. Rohit K

    March 17, 2019 at 7:58 am

    That's insane analysis !! Awesome Prof. – A++

  27. MrKKUT1984

    March 18, 2019 at 2:23 am

    This really was a great movie, even my 11 year old daughter loves this movie in a time where b.s. reality tv and social media are hugely popular

  28. Peter Terrell

    March 18, 2019 at 9:50 pm

    What a pity such a dramatic attractive story should contain such corruptible language for children. The film not for children? Balderdash!

  29. Peter Terrell

    March 18, 2019 at 9:53 pm

    An obscene English word referring to sex – what is it Sean Bean? Does it make Hollywood proud it has corrupted mankind with this crass expletive?

  30. Ian Holland

    March 18, 2019 at 10:58 pm

    Love the Total Recall reference in the thumbnail!

  31. Jake Pawl

    March 18, 2019 at 11:50 pm

    Had to toss in the feminism from the dyke eh?? Fail.

  32. Fisch RZ I Thanks for 50 Subs

    March 19, 2019 at 6:55 pm

    correct 1 rover

  33. Kijou

    March 20, 2019 at 4:44 am

    17:20 Dr Mann in Interstellar was not put in for artificial drama or just 'crazy and stupid'. His character was regarded as one of the best that NASA had to offer, he was a smart and qualified guy, but then he got stranded on an icy hellhole and was driven insane after being there for decades alone. So to group that in with other hollywood astronaut tropes shows a lack of an understanding of his character in the film.

  34. Bill Howard

    March 21, 2019 at 9:09 pm

    … duct tape and plastic will barely hold .2 psi, NOT 5 psi

  35. Yama 123numbercauseYTdemandsname

    March 22, 2019 at 11:12 am

    9:20 your test misses one point though (maybe you calculated that but didn't show it) Mars has also less than half of earth's gravity, so we can conclude that you need less force to move the grains.

  36. Ray Hollands

    March 22, 2019 at 8:14 pm

    Hi, I feel this films biggest flaw is that the ship in orbit is far enough for the crew to sit the storm out!

    So, why didn't they wait in orbit until 3sand storm passes to evaluate what's left of their hab module before turning for Earth? Matt Damon's character clearly states, there's over half of the supplies left, they were half way through the mission, to just turn for home is wrong. They should of still been in orbit and observed Matt's movements below – but then there wouldn't of been a film!

  37. Yarra Marie Amancio

    March 23, 2019 at 8:44 am

    "Right now we have 7 active missions on Mars including to Rovers"

    Well guess what, we don't have one now.
    R.I.P. Opportunity Rover 😥

  38. Reg Wonham

    March 23, 2019 at 9:33 pm

    You have all this stuff you got up ther and you hvent found out shit

  39. Squirt Reynolds

    March 24, 2019 at 12:32 pm

    I liked this video much better than The Martian. 2 hours watching Matt Damon grow potatoes in his own feces. I paid almost $20.00 to see that movie on IMAX, and slept through half.

  40. Turdus Migratorius

    March 24, 2019 at 4:23 pm

    My biggest problem with both the book and the movie is that there were simply too god-damned many crises, one after the other — starting with the fake dust storm. The whole thing was Murphy's law x 10 and mainly for "drama". (And then there is all those perchlorate salts in the soil.)

  41. frontier metals

    March 25, 2019 at 5:16 am

    The fail for me was when he produced water by reacting palladium and hydrogen. Why not go outside and collect some ice and let it melt? There's ice all over Mars.

  42. M C

    March 25, 2019 at 11:37 pm

    Why does kate mara try to look like a little beta boy outside of movies? Is she trying to make herself look as ugly as possible? Is it a SJW thing?

  43. Keith Hays

    March 27, 2019 at 4:31 am

    I don't think the resupply ship would have been able to catch up to the Hermes.

  44. Armymedic1975

    March 27, 2019 at 9:45 pm

    Im sorry but if you cast Matt Damon you cant help but portray someone as dumb. He has the intelligence and acting ability of a gnat

  45. tony p

    March 29, 2019 at 6:25 pm

    Mar 2019 and I still love watching this movie.

  46. Russ Warren

    March 30, 2019 at 6:09 pm

    Is one Kate Mara three apples high?

  47. Duane Bidoux

    March 30, 2019 at 8:50 pm

    I would have liked to hear some detailed analysis on the practicality and realism of being able to grow his food the way he did even going so far as to compare caloric content he can generate compared to his relative need and was it realistic that he did with the soil, etc.

  48. Networking TheWorld

    March 31, 2019 at 6:29 am

    Great doco 😀

  49. Valan Chan

    April 1, 2019 at 7:32 am

    Great video. You left out my favourite fail – the difference in atmospheric pressure not portrayed in the movie. After the explosion in the base the plastic shield is seen blowing. There is supposed to be one earth atmospheric pressure on one side and Mars atmospheric pressure on the other.

  50. Bjørn Clausen

    April 4, 2019 at 9:06 am

    Why be scientific correct – it just have to be entertaining….What about star wars????

  51. John Smith

    April 4, 2019 at 10:19 am

    Anybody know who created the 'Cocaine' cover at 4:28?

  52. Keith Edwards

    April 5, 2019 at 5:29 pm

    One thing that should be required for a manned mission to Mars… The banning of all disco music, lol.

  53. Joseph Lim

    April 5, 2019 at 10:15 pm

    Wish you could of touched on the climax of the movie when the commander, Jessica Chastain goes out to space and catches Matt Damon after slowing down to get close to matching Damon’s speed of 6 metres per second. When I imagine this one earth, Damon would be going about as fast as a car on a highway and I catch him. Is the speed different in space?

  54. Michu's Gaming

    April 6, 2019 at 9:52 pm

    Now one rover 🙁
    RIP
    Oppy

  55. James Rose

    April 7, 2019 at 3:06 am

    50 mph on Earth = 500 mph on Mars, or 50 times earth's wind speed. Soooo, 50 × 50 = 500…

  56. Julien Hughes

    April 8, 2019 at 8:25 pm

    I somehow knew they weren't going to address the pressure suit propulsion (cut the glove), while on a suborbital flight to rendezvous with the ship on a flyby trajectory.

  57. fadly A. Rahman

    April 9, 2019 at 3:44 am

    Donald Glover doing science. I still can't wrap my head around it till this day.

  58. Lexu Iosub

    April 9, 2019 at 8:55 pm

    everione is a smart ass, no man have been to mars bu they know everithing fuck off with your science you all eat shit and know nothing concret

  59. Mort Kebab

    April 9, 2019 at 11:20 pm

    This is trivial. You don't need a professor to explain these things.

  60. therealnightwriter

    April 11, 2019 at 6:10 am

    Lol, Andy has been lied to, we are already ON Mars, the Germans provably had anti-gravity in the late 1920's. They now have bases all over and trade with well over 1000 civilizations, and are blocked from others. Kennedy gave a speech at Columbia University about "amazing technologies" that he would soon release: "The cures for every human malady…the ability to travel vast distances in the blink of an eye." Then they killed him.

  61. therealnightwriter

    April 11, 2019 at 6:11 am

    Remember, in 1963 JFK said ",,to travel ANYWHERE in the blink of an eye" that means MARS also

  62. fred flintstone

    April 11, 2019 at 7:36 am

    Media vs. Intelligence

  63. Franz Hase

    April 11, 2019 at 10:59 am

    Why are there so many A-10C sticks in movies? The Martian, The Expanse, Star Trek: Discovery. Lazy designers…

  64. Mier Beuker

    April 11, 2019 at 2:07 pm

    Science vs Cinema?!?

    This is gonna be a short video.

  65. lumpfish99

    April 11, 2019 at 4:18 pm

    I love how these idiots say at the end that they hope kids watch this and get inspired to become scientists……..but violent movies or songs have no effect whatsoever…….'Foolery Sir, doth walk about orb like the sun, It shines everywhere.'

  66. ozricstormbringer

    April 11, 2019 at 7:10 pm

    so o was thinking about the issue with rotational gravity in space. now if 2 people are holding hands and running in circles they can lean back and in effect both transfer weight out. if one person dont extent his head out the gravity generated by the other that did extend its head. the one the didn't lean out would get pulled in by the arms by the one that did. so based off that theory of distance from pivot point times spin equals gravity. sintripidal force

  67. Kall399

    April 12, 2019 at 12:59 am

    Just wait till we can actually shoot movies on mars and the moon.

  68. カトウナオシ

    April 12, 2019 at 1:55 am

    https://www.youtube.com/watch?v=jFv5yY7pMgQ
    Fukushima

  69. adam m

    April 14, 2019 at 6:00 pm

    I’m studying aeronautics to become a astronaut 👨‍🚀

  70. ChrisBrengel

    April 15, 2019 at 4:47 pm

    Great video! Thanks for making!

    You could have mentioned how the book was started and written to be so scientifically accurate (other than the opening dust storm).

  71. A Page

    April 16, 2019 at 1:23 am

    As a college professor I can’t condone cheating… lol yeah right.

  72. vlupis1

    April 16, 2019 at 4:58 am

    Good shoulder!

  73. Muhamed Mulic

    April 17, 2019 at 8:49 pm

    2:37 *1 rover
    R.I.P. Opportunity. you will be missed.

  74. luis bito

    April 18, 2019 at 4:56 am

    the reason humans live hologram every is illusion fake

  75. Cheeky Devil

    April 18, 2019 at 11:07 pm

    I watch science-fiction to get away from reality and from scientific fact, hence the name science-fiction! I know a lot of scientist think it pointless, but I disagree, it allows our minds to grow and to think of things we wouldn’t ordinarily think of, and can possibly lead to fantastic and new discoveries that never would’ve came to be had it not been for science fiction.

  76. Balubish Tech

    April 20, 2019 at 2:40 pm

    Its because they are making a movie, not a "Science" project.

  77. Silverbreaker

    April 21, 2019 at 3:59 pm

    haha 'science' – the earth is fucking flat so its more fantasy vs cinema or religion vs cinema. idiots

  78. Nancy Falcon

    April 21, 2019 at 5:02 pm

    what about the nutrition of the poop potatoes for a long term diet? Could he really maintain his critical thinking, physicality and sense of humor for that long on a diet of potatoes?

  79. Zandor Felok

    April 22, 2019 at 6:45 pm

    5:25 – one Kate Mara, the new scientific standard for the measurement of 5ft 2in

  80. Chris Roze

    April 22, 2019 at 11:36 pm

    The most impressive is that the movie was made in a country where half the population still believe the earth was created 6,000 years ago by a skywizard, believe in women born of men's rib (somehow), in talking snake and for some of them, in a flat earth, and somehow still was a success. i guess the other half went to see the movie.

  81. Dangis Congrataway

    April 23, 2019 at 6:31 pm

    23:40 loved this sentence

  82. Panda

    April 25, 2019 at 2:43 pm

    Hey man great job, i saw this video by luck, it was mind blowing how good it was, i'm gonna watch all other videos and subscribe, good job man.

  83. sailor c smith

    April 26, 2019 at 1:33 am

    No way can you grow food on mars.It does not matter how much shit, you shit.. SOIL is organic, to make that you need organic.. Mars aint got any..

  84. Alessandro Scaravelli

    May 1, 2019 at 2:40 pm

    I have a question, even if they simulated gravity with a rotating wheel, would not they experiment an acceleration in the forward direction, the one where the bosters trust, becuose of the ion engine?

  85. Limeflake

    May 4, 2019 at 4:02 pm

    What was with the Airlock scene

  86. Dennis Mennillo

    May 8, 2019 at 2:41 pm

    Why did they not mention when he cuts his glove in space? The movie was believable before he did that.

  87. George Isaak

    May 9, 2019 at 8:39 am

    It was a movie and nobody expects it to be 100% accurate just because of that . To put it simply into words its crazy expecting an actor with zero training about space travel to be acting like a natural real astronaut . You cannot expect from designers to do the job engineers do normally and of course designers never had to deal with the real challenges engineers do . Its another thing making a movie and do some research about it to be guided into the right direction and another thing to actually live ,explore and survive on Mars .

  88. jrs80920

    May 10, 2019 at 4:05 pm

    I'm no scientist, but to me, it appeared as if the level of light on Mars was wrong.  From I've seen, it always appears as if the light from the sun is dimmer than what was portrayed in the movie?

  89. The Peanut Gallery

    May 10, 2019 at 10:09 pm

    the lander on the dark side of the moon sent by china is growing plants in lunar soil so it is at least a possibility that you might be able to on mars

  90. Magneat o

    May 10, 2019 at 11:53 pm

    Ridley Scott needs to make all of the sci-fi movies from now on. He always includes the right amount of realism and darkness to make a movie unnerving and enjoyable.

  91. Chess Theory#

    May 12, 2019 at 10:50 am

    Jo o pallosh nk vlen per ne hapesir

  92. John Watson

    May 12, 2019 at 7:38 pm

    Hey Andy – why is Mark Watney shown successfully making a 50,000 lb. pressure bulkhead against the Martian vacuum with tarp plastic and duct tape? Is this a huge win for science or am I missing something?

  93. nick f

    May 13, 2019 at 2:55 am

    It was an enjoyable movie, any faults asside.

  94. Anthony Burkes

    May 19, 2019 at 7:22 pm

    You left out the entire part of the movie where he's trying to make oxygen to grow his potatoes. That makes no sense. Then his contraption blows up, and he says, "I forgot to account for the oxygen I was breathing out." That basically ruined the movie for me. I mean, that's just…….dumb.

  95. mel on

    May 25, 2019 at 9:27 pm

    I mean if people think that movies are realistic especially sci find they're the idiots not the movie

  96. Dragon_Skate

    June 7, 2019 at 2:52 am

    Didn't ask the most important question though, why did they change Venkat's name to Vincent? They explain pretty well why they couldn't pull off all of the science, but why change a characters name? What was the reasoning behind that?

  97. rpbajb

    June 19, 2019 at 4:32 pm

    Forgive me if this has been mentioned before, I can't read all 2000 comments. Why send a botanist to a planet where nothing grows? Wouldn't a health physicist, or a master mechanic, or even a poet have been a better choice?

  98. Nick Pritchard

    July 20, 2019 at 8:43 pm

    They definitely could’ve done the 40% gravity. Put them on a wire, just like in any moon landing film. It’s too bad, but still a spectacular film from Scott!

  99. Bryon Letterman

    July 25, 2019 at 6:36 am

    Saw this in theaters and I was fascinated for the entire movie. I don't buy a lot of movies on Blu-Ray, but this one was a must.

  100. Joseph Chan

    August 28, 2019 at 1:57 am

    Mystery is unreal…the water did spill out..

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