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What Happens if Your Body is Exposed to the Vacuum of Space?

25257 ratings | 1453844 views
Hank answers a SciShow viewer's most pressing question about what happens if the human body gets exposed to space. Would your head really explode? Like SciShow? http://www.facebook.com/scishow Follow SciShow! http://www.twitter.com/scishow T*umbl SciShow. http://scishow.tumblr.com References http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970603.html http://blogs.discovermagazine.com/badastronomy/2012/01/31/qba-what-happens-if-you-are-exposed-to-the-vacuum-of-space/#.UMGD-pPjn0g
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Text Comments (5097)
jessestylex (7 days ago)
We need to stop guessing and send a dozen ISIS memebers to space and film what happens.
LA GAMING! (8 days ago)
Bro (18 days ago)
U look like Steve rogers
Anra Sjar (25 days ago)
what would happen if vacuum enters our body like for eg. if you like inject an empty syringe to our body,would we die??
Mr Twister (28 days ago)
So a person, in theory could survive up to 15 seconds in space without a life support system?
Shake M (1 month ago)
So the vacuum chamber that NASA has never been used on humans...ever?! Except for one time when it almost killed an astronaut.
Ozan Sezer (1 month ago)
I have watched a few videos on this subject and they explain quite differently.
Daniel (1 month ago)
Yeah there is this Chris Hadfield video when he talks about myths in space and said you blood would boil, sooo i am confused of what the truth is
Gaurav Sharma (1 month ago)
i don't understand.. first u said that blood will not boil and after that u said that blood started boiling.. can u explain plzz
kobra6660 (1 month ago)
You'd basically implode
RiptideV10 (1 month ago)
what an amazing way to go out. the earth under your feet, everything that has ever been, so tiny. 15s later you enter eternal slumber, entering wherever your subconscious brings you. if you think theres a heaven and hell and you think you deserve hell, you'll burn there. if you imagine playing games forever, there you'll be. nobody to shout at you for playing too long n=and friends telling you to get a life.
The Jokester (1 month ago)
What will if you get a cut in your blood is being exposed to the vacuum of space because if an astronaut was exposed to space is probably because the spacecraft crashed and they may have a cut on their body
FactDOTCom (1 month ago)
If we die in space then will our body be decay or not?
Matt Woodworth (1 month ago)
That was horrible!!!
Gaurav Sharma (1 month ago)
i don't understand , first u said the blood will not boil as there is no medium to transfer heat.. but on the second case u said that the saliva of that guy was boiling..
dork xx (1 month ago)
he’s so adorable ❤️❤️❤️💗💖❤️💗❤️💗
Dawie Van Emmenes (1 month ago)
I got sucked down a toilet once passing gas.
Jen Bae (2 months ago)
Lol he’s hilarious 😂
KVN1957 (2 months ago)
Lindsay Wheatcroft (2 months ago)
If you had a cut, would the blood leak out at a normal rate and pool on your skin and boil away, or would it blast out like a fire hose and turn into crimson steam?
That's terrifying to know this information as a female. It's like when a guy sees someone getting kicked in the balls.
Che Tra (2 months ago)
But lack of pressure can also freeze the water
Adam Bryant (2 months ago)
a young hank has appeared.
Heads Tails (2 months ago)
Can we send back a razor in time?
Aidan Worthington (2 months ago)
Why is angular momentum quantized and why do we call a quantum number 'spin' even though it doesn't relate to spinning??
Johnny Todd (2 months ago)
How stupid this video is, they tested an astronaut suit in a vacuum less than the moon and it leaked and the astronaut said he could feel his saliva start to boil on his tongue and he passed out............not to mention an object in space does not need air to transfer the temperature to the object the object itself would conduct the radiation of the sun or the freezing temperature of space, this was easily demonstrated by shining a light at a thermometer in a vacuum, the thermometer itself was all the matter that was needed to conduct the heat
Joe Days (2 months ago)
What a load of crap!!! If course your blood would boil. Hi watch videos on YouTube where people put their have into a chamber and start a vacuum inside. Heck, just take a vacuum cleaner and put it on your neck or stomach. And after a few seconds you can see your blood bring sucked out through your skin. iE..a big hickey. That's the blood in your body boiling and coming to the surface because there is no pressure holding it in. Or in these cases being sucked out. Boiling doesn't "technically" mean actually boil like how water boils on a stove. Boiling is when the little bubble in your blood start to get stimulated to being sucked out and separated from your actual liquid plasma (blood)
Oh Alone (2 months ago)
What If we do a boxing match in zero gravity ?
Reggie Cook (3 months ago)
The universe is like an endless ocean where you'll drown, scary!
Twisties T (3 months ago)
What would happen if you depressurized yourself then exposed yourself to the vacuum of space ? Answer that one mahahah
DMarlene asd (3 months ago)
the universe isn't the coldest place in the universe, my ex boyfriend's heart is.
CHA REE CHAN (3 months ago)
Beginning of video: "contrary to beliefs Your blood wouldnt boil " 1:00 min later "your intestines an body would start to boil" Smh gtfoh
Derek Wall (3 months ago)
well if that were to happen mercifully enough it doesnt sound like a very painful way to die. hell you're unconscious in 15 seconds and if you do feel anything you wont suffer for long
Martin Godinez (3 months ago)
But what happens to d air does it spread evenly in space? Or does it couse a less powerful vacuum in space? Lol someone please answer me.
Demonic deadpool (3 months ago)
The object can be anything to make it fun (:
Demonic deadpool (3 months ago)
How hard would you have to punch something to break every single bone in the arm you punch with??
David Serrano (3 months ago)
So ,theoretically, you could last 5 seconds in space?
Ethan_Fantastic (4 months ago)
I know that this is kinda off topic but how far exactly can the human eye see i mean we can see the moon and the sun and stars and there extremely far away is it just because there bright and if that's true couldn't we see like an Infinite amount as long as it's something super bright
digitalquartergod (3 months ago)
Ethan_Fantastic We can only see light that is reaching our eyes. The further something is away the darker it seems to be. So you're right, we can only see stars because they are so bright. But we can't see into infinity. Light travels at lightspeed as we know. So the light of a star that is 4 lightyears away travels 4 years to Earth. But the universe is only about 14 billion years old. So light from stars that are more than 14 billion lightyears away didn't have enough time to reach earth yet. So the distance the eye can see is limited by the big bang itself
J o k e r (4 months ago)
So if we die in space we won't suffer
Queen D (4 months ago)
He talks too fast annoying
Aggro Vader (4 months ago)
From fiction this might be as close to reality as you're going to get from Hollywood: https://youtu.be/wp70vEiAn7E
Bobby Willis (4 months ago)
So there you have it, all you annoying people saying that the “Leia poppins” scene in the last Jedi didn’t make since. You don’t explode or implode, but you will die shortly. You can survive 15 seconds before blacking out and she used those 15 seconds to get back to the ship before blacking out. So shut up.
darthkahn45 (4 months ago)
When you thought it was the force but it was 2:05
Karan Raj (4 months ago)
1:27 😂😂😂
digitalquartergod (3 months ago)
Karan Raj She only did the superman pose so it doesn't look strange
Lancelot HipHop (4 months ago)
On the bright side, if you black out in 10-15 seconds, your death would probably be pretty much painless. Not the worst way to go imo
Marshall Pederson (4 months ago)
So anyone mind answering this? When you are sucked out into space, from a ship, wouldn't the heat leave your body by transferring to the leaving atmosphere?
Der SchnittProphet (4 months ago)
Who is from Star Wars Stories?
ِ ِ (4 months ago)
Kannst du auch ruhig auf Deutsch schreiben. xd
Kaleb Acosta (4 months ago)
Anybody else here after watching The Last Jedi?
this guy (1 month ago)
She used the force dammit! Lol
Walter Kleber (5 months ago)
Take that Leia!
Modiwo (5 months ago)
R.I.P. Leia
Deaax (5 months ago)
Carry doesn’t care.
Jephro Gaming (5 months ago)
Anyone else here after Episode 8? XD
Caleb Higginbotham (5 months ago)
Somebody should have told Rian Johnson and Princess Leia
Anakin Skywalker (5 months ago)
"You would Die, You arent Superman" [TLJ SPOILERS] Unless you're Leia Organa
Steven Mathews (5 months ago)
But if we somehow survived would the radiation give us superpowers?
Mixedupcrazy1 (5 months ago)
The Last Jedi brought me here. Is Star Wars becoming Guardians of the Galaxy now?
venator5 (5 months ago)
But what happens when you get into vacuum rapidly? Like your suit damaged?
markleyg (5 months ago)
You would get the bends just like a scuba diver does when ascending too fast.
BlackZero Rs (5 months ago)
In this video, they have finger exposed to the vacuum in space! How that is possible? Link: https://www.youtube.com/watch?v=WF7v_0qvug4 Oh, because space is a hoax!
yea02 (5 months ago)
10-15 seconds of concious dying... Not really funny.
aunun ally (5 months ago)
you're a liar create the vacuum in your lab and put a glass of water in it it will boil then it will turn to ice. and it doesn't matter what kind of container you put it in
uncleanunicorn (6 months ago)
So it would be possible for a brave, bold, space hero to jump from one airlock to another wearing nothing but his own bravery if it took less than 15 seconds.
D Ricks (6 months ago)
So it would be possible for a brave, bold, space hero to jump from one airlock to another wearing nothing but his own bravery if it took less than 15 seconds.
Dominique Harris (6 months ago)
Get the wrost sunburn ever
asrar ahmad (6 months ago)
u wud still lose heat through radiation,no need for the material to conduct that energy.
Administra2rS (6 months ago)
SPACE THRUST DEBUNKED!!! Look :) If you are standing in a vacuum chamber, you will NOT move until you stretch out your arm against a wall. If you blow very very hard since your body is very dense, you will move because the AIR is stopping AGAINST the WALL. It creates something, a barrier against something, a physical object material you can push against. NOW! What happens if you REMOVE the WALL??? Thrust in the vacuum of space is a HOAX it is FAKE, do NOT THRUST NASA!!!
Administra2rS (5 months ago)
In the vacuum of space, there are no gravity and negative pressure. No way for thrust to form. A bullet works cuz there are two hard parts, gas and liquid does not fit in this category. The bullet works cuz the two hard parts HOLDS together. A thrust in the vacuum of space will work if you can physically screw the air/gas that is coming out of the rocket to the chassis of the rocket, something that we can not do. Thrust does not work in space. It has EVERY thing to say witch material is used. Recoil can ONLY happen when there are two hard material parts connected. When the exhaust leaves the rocket THEN it still hangs in a sucking vacuum and it's no logen CONNECTED to the rocket. No thrust can be created. If the rocket was spitting out something of HARD material that is connected physically to the rocket, then the push could have been made (like a minigun propulsion system). You can not glue exhaust to the rocket, there for the thrust won't work. The vacuum of space is PULLING the rocket in all directions. On the surface of the earth it is positive pressure that is pushing everything IN. So the rocket can travel and thrust in positive pressure where Newton's 3 law WORKS, but FAILS in the sucking vacuum of space.
GamingTheSystems (5 months ago)
If you stand on a skateboard and throw a bowling ball forward, that force will push you and the skateboard back. It's not because the bowling ball is hitting a wall or air. This is how thrust works in space too. The act of pushing something out one end, causes the other end to move away. Your example of something blowing air very hard out their mouth would work the same way, wall or no wall.
Johnny Herbert (6 months ago)
who names the colours
Aimon Chaudry (7 months ago)
Why do the bodies float in space ? @SciShow
Decompression for all!
Travis-Colt Gray (7 months ago)
Sure are a lot of scientists in the comments.
Marcia (7 months ago)
A friend told me when he did an experiment in high school science class of putting a mouse in a vacuum (before animal rights) and the mouse blew up.
Graeme Lastname (7 months ago)
If you try to hold your breath my guess is that your eardrums would rupture. Any data anyone?
Derek Knight (7 months ago)
Whoa!!! This is amazing. Not at all what I expected. Thanks for the rad video!
johncautobody (7 months ago)
and of course the earth is flat and space doesnt exist
johncautobody (7 months ago)
there is no vacuum of space.two opposing pressure systems can not exist side by side without a solid barrier in between.It would be like having a can of spray paint in your hand,and taking away the metal can,leaving just the paint and expecting it to just magically be there.something called equalibrium proves there is no vacuum.you been lied to kiddies...nasa is a big phony.stop buying into it here on youtube and sounding like lost sheep,saying things like.."duh,thats fascinating"
Tina Byrd (7 months ago)
Maybe make a video about how radiation affects astronauts
David Desantis (7 months ago)
Where does the air go in space
Aditya Chowdhury (7 months ago)
Whoa , wait , you could still lose heat by radiation
Nolan Westrich (7 months ago)
So, the first thing that would happen in space without the suit is that you'd have a fart pulled out of you. Weird.
Crackscacks Hunter (7 months ago)
Do you think you can move your body inside a space suit pressurized to 4.7 psi with pure O2 without a scuba divers help?
amytastic4 (8 months ago)
"But you probably wouldn't mind that much, considering how dead you'd be." Gee, what a comforting thought, Hank. Thank you.
christ4u2now (8 months ago)
So you mean that they would not explode, neither freeze in the space since it is vacuum without air? Then why do the astronauts need a heavy and expensive space suit with many layers? It should then be enough if they had an oxygen tank with a mouthpiece and sweatpants. I can smell the rat. The explanations in the video don't stick together with what has been told in earlier years. And I'm very skeptical to the Moon landing. And if the radiation, heat, and cold was not a problem in the space, then why did the Moon modules had a layer of foil paper, around some parts of the module if it was not for protection? Protection for what?
Abdishakur Yusuf (8 months ago)
Will i die at all.. yeah u wud.. you're not superman
Vivek Kumar (8 months ago)
Attention!!! sci show although there is no medium for heat conduction but a process known as heat radiation states that any body above Absolute Temperature (0K) radiate heat in the form of electromagnetic waves that is heat is radiated out of the body without any medium
Joshua Mwaniki (8 months ago)
But wouldn't you boil precisely because your body has no thermal medium to release the heat?
Modern Myth (8 months ago)
Hey hank.....when is the next episode of philo-...... Sry wrong channel
HVG Ocean Maboloc (8 months ago)
The universe is the coldest place in the universe.
Dr. Goulu (8 months ago)
No so sure about "you wouldn't be able to resist the pull of the vacuum". Basically it's a 1 atmosphere depressurization, so about the same as to go back to the surface from a 10m deep dive with air at 2 atm in your lungs. Certainly uncomfortable but it seems possible... Anyway, the most scientifically accurate exposure to vacuum in scifi is probably in 2001 : A Space Odyssey filmed in 1968 ...
athirathreddy k (9 months ago)
Eigen Nam (9 months ago)
There actually is no pull. There only is pressure in physics...so why do you think it would pull the air out of the lungs if there is no outer pressure? If you exhale there of course isn't much to inhale then but there is no reason the force of your diaphragm wouldn't keep that in. If you hold your breath there is actually no other hole it can escape through since all the others are connected through your nasal cavity. Our body, lungs and everything can endure pressures on earth from 5 psi up to 308 psi (evidently, not theoretically), so why do you think 5 less psi would change anything?
Bored.In.California (9 months ago)
This guys funny Thumbs Up!
Zweihander11 (9 months ago)
So Douglas Adams was right. You could survive until improbabilty drive saves you. The more you know...
Dylan (9 months ago)
lil Hank. they grow up so fast
Paulo Castro (10 months ago)
even if astronaut suit is punctured the person inside will not explode cause there's a pressure generator inside until then you're safe
magic pain glove (10 months ago)
6 pm sex with volkswagens ( ͡° ͜ʖ ͡°)
Brandon Sexton (10 months ago)
Your obviously an idiot. All of the fluids in our body remain fluids because of the air pressure. If there is no air pressure than all of the fluids will start to boil. That includes water in the interstitial spaces of the cells in our skin and then our blood. Moron.
alinmarmate (10 months ago)
''accidentally depressurised'' .. yeah .. sure
Catystrophia (10 months ago)
Hank is weirdly giddy while talking about this, lol.
Stephen N (10 months ago)
Sunburn is the least of your problems. How about a large amount of radiation, bc there is no Ozone to protect you from gamma rays?
Fusurugi (10 months ago)
there was a deep water diving accident. 10 bar. at once. woody & buzz meme: meat slushy. meat slushy everywhere.

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