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Explosive Decompression
Gesundheit.

"Like any properly trained man in good health, he could survive in vacuum for at least a minute — if he had time to prepare for it. But there had been no time; he could only count on the normal fifteen seconds of consciousness before his brain was starved and anoxia overcame him."

Outer space is not friendly. Woe betide anyone foolish enough to step into it unprotected (or unfortunate enough to get Thrown Out the Airlock): they'll pop like a turkey with a grenade stuffed inside.

Well, that's the movie version. The reality is quite different. As unfriendly as the vacuum of space is, the body's made of stern enough stuff to stay in one piece. When you step outside, you've got about 15 seconds before you pass out from anoxia, a couple of minutes at best until you die from the same, and all sorts of nasty decompression injuries in between. (Exposed areas swelling up, body fluids boiling off your surfaces) But, you never quite go boom: remember, technically speaking, your blood is not in a vacuum: it's in you, so swelling and boiling blood only occurs toward your squishiest, outermost layer of capillaries. A classic piece of Hollywood Science; in fact this belief is so widespread that audiences are more outraged when it doesn't happen (see The Coconut Effect and Reality Is Unrealistic).

Incidentally, holding your breath would be worse than useless; the difference in pressure would cause a serious and fatal embolism even from the smallest amount of air in the lungs resulting in death even if someone manages to rescue you. Though this isn't the bottom line. Pulmonary barotrauma (lung rupture) is possible, but not guaranteed. It is far less likely if the decompression occurs slower than about half a second, which is quite common in sci-fi.

This one can happen in real life if you get a really high pressure gradient - from above-normal pressure down to atmospheric pressure, say, or to be more precise, about 8 or 9 atm (atmospheres) to 1 atm (normal atmospheric pressure). If you're interested, Google the "Byford Dolphin" - but beware of Nausea Fuel.

The term "Explosive Decompression" is legitimate, but it refers to the speed at which the decompression occurs, not the result or cause. There has only been one recorded incident of explosive decompression aboard spacecraft that killed the crew, and numerous cases of explosive decompression on aircraft (several of which led to crashes). But while it certainly can cause part of the airplane to explode (due to whatever fault caused the decompression in the first place), the usual result for passengers is either slow hypoxia, or if they are really unlucky a chance to go skydiving without a parachute.

Discussed in detail here.

See Space Is Cold for another way that space doesn't instantly kill you. See also Continuous Decompression for how Hollywood Science handles actual Explosive Decompression.hint 


Examples:

    open/close all folders 

    Anime and Manga 
  • Averted a few times in Gundam: in Mobile Suit Gundam AGE, Asemu jumps from mech to mech through vacuum without a suit, but is unharmed by the few seconds of exposure to vacuum. In Mobile Suit Victory Gundam, Usso does the same thing (while naked, no less). In his case, Haro generates a bubble around him for some meager protection, and he briefly passes out afterward.
  • In Bleach, Gremmy Thoumeaux uses his Imagination-Based Superpower to form a pocket of outer space around Kenpachi Zaraki. Kenpachi screams in silent agony as his lungs start to burst and his eyes almost pop out of his head... then being Kenpachi, simply flies out of the pocket and slashes at Gremmy.

    Comic Books 
  • Transformers: The Reign of Starscream #2 shows Starscream capturing a human and then putting him in his cockpit for the return trip to Cybertron. Since Cybertronians don't breathe and don't need pilots, they don't pressurize their altmodes' operators' spaces. The poor human pops when Starscream leaves the atmosphere.
  • An old Weird Science story had people vanishing instantly when tossed into space. Weird science indeed...
  • In Scud The Disposable Assassin, The evil British Shakespearean actor astronaut werewolf undergoes this trope while in a stable orbit over earth. Since he is immortal, his body instantly reconstitutes itself only to explode again...and again, and again ad infinitum.
  • An issue of Justice League of America showed Batman deliberately exposing himself to the hard vacuum of space (while in a controlled chamber in the JLA's base on the moon), exploring his physical endurance limits, or else preparing himself for the eventuality of it actually happening one day (with Batman, either is likely). The artwork was realistic in showing the effects the vacuum was having on his physical body, but he still lasted a lot longer than a normal human would've, even one in the peak of physical condition.
  • Narrowly averted in Legends of Zita The Spacegirl. Zita is in a flimsy glass escape capsule, which inconveniently loses its method of propulsion and cracks up, leaving her afloat in space. The character is rescued by a conveniently-arranged Deus ex Machina, but is shown holding her breath beforehand. According to Arthur C. Clarke that's not the wisest thing to do in that situation.

    Fan Fiction 

    Films — Animated 
  • Averted in Titan A.E., in which during a Crowning Moment Of Awesome, Corso and Cale escape from a smashed escape pod by using a fire extinguisher to propel themselves through space to the safety of Corso's ship. Corso specifically instructs Cale to exhale before leaving the pod. The writing staff did their homework on this one.

    Films — Live-Action 
  • Every time a low-budget sci-fi flick does vacuum exposure, it's Explosion Time. If the astronaut gets so much as a rip in his space suit, he'll be painting it with his internal fluids.
    • In the 1972 low-budget sci-fi film Doomsday Machine, two crew members are killed this way by unlocking the airlock by accident during an attempted rape. Oddly enough, they float around as their eyes start bleeding but their heads don't explode.
  • The James Bond film Licence to Kill features a "Byford Dolphin" style decompression involving a henchman, a decompression chamber and an axe. This one gets frequently trimmed by the local Media Watchdog.
    • Averted in another James Bond film, Moonraker, which had Bond expel the villain out an airlock. He seemed to freeze quickly, but didn't explode. Considering how thoroughly the laws of physics were violated in the movie, it was surprising that they didn't go with that trope as well, though the Squick potential might have been a factor.
    • Kick-Ass has a scene so similar it could be a Shout-Out.
  • The 1981 movie Outland features two professional assassins that are sent on Jupiter's moon Io to kill off the main character O'Niel, who has discovered an illegal drug operation. Both die due to Explosive Decompression: one paints a duct red when O'Niel depressurizes it (after an amusing "ballooning up" shot), the other dies when he is led into shooting a glass windows in the room he's in. We're then treated to a scene in which his body explosively shatters as the air rushing out blows him into space. This happens in a manner of seconds, even though the room appears to be hundreds of feet in every direction, and the hole is relatively small. There's also the problem that the outer windows of a space base are weak enough to be shattered by a shotgun blast from a great distance.
    • Explosive Decompression happened frequently in this movie, which opened with an anonymous character exploding inside his space-suit. Another is exposed more slowly in a space-elevator, and is afterward shown with his guts exploded.
  • Total Recall (1990): In real life, Mars has a mean atmospheric pressure of 600 pascals. Humans are used to a pressure of 101,300 pascals. In the movie, where being exposed to the surface of Mars gives characters eyes the size of tangerines, the pressure is apparently at -1,000 pascals.note  Even more ludicrous: after returning to "normal" pressure, those tangerine eyes go back to normal, with no ill effects— they aren't even bloodshot. This is explained if you accept the interpretation that most of the movie is occurring in the character's head, and simply reflects his faulty beliefs on how this would work in real life.
  • Event Horizon, in which a possessed member of the crew attempts suicide by ejecting himself out the airlock. He doesn't explode, but the whole thing is portrayed very messily. To the film's credit, he needs a lot of medical attention when he's eventually returned to breathable atmosphere.
    • His small blood vessels rupture in the decompression, resulting in hemorrage from his cavities. It's pretty realistic, though whether there'd be quite that much blood is anybody's guess.
    • The dialog during the event even has the Captain telling the young crew member to blow all the air out of his lungs just before the doors open
  • Averted in Mission to Mars: Commander Woody Blake sacrifices himself on the way to Mars by taking off his space-suit's helmet, and then he just kind of turns purple and dies. However, it does play Space Is Cold straight by having him insta-freeze.
  • Averted in Supernova when Karl Larson sends the corpse of a man he just murdered out of a casualty chute. The body gets accelerated by a puff of gas but simply flies off into space without so much as even expanding.
  • Partially averted in 2001: A Space Odyssey. When Dave Bowman has to reenter his ship through the airlock he realizes that he has left behind his spacesuit's helmet. After blowing himself out of his pod into the open airlock he has several seconds of workable consciousness until he can throw a valve to pressurize the airlock again. He apparently suffers no ill effects even though it appears that he attempted to hold his breath.note 
  • Used in a different fashion to the usual in the film Alien: Resurrection, where the Newborn is killed by using acidic blood to melt a relatively small hole in the viewing port behind it; the pressure first pins the xenomorph/human hybrid against the wall, and then the continued pressure difference... well, it sucks the Newborn through the hole.
  • Averted in Gravity. Ryan is startled to see a Not Quite Dead Kowalski outside the Soyuz hatch, which he opens even though she's not wearing her helmet, sucking out all the air but leaving her unharmed once he closes the hatch and raises the oxygen levels. Turns out it's All Just a Dream anyway.

    Literature 
  • It doesn't actually happen in the X-Wing Series, but after the bridge of his capital ship is breached, General Solo reflects that if the crew can't get into a pressurized area before the bridge is sealed off, they're going to experience the "joys of explosive decompression". To be fair, he might not actually know how people in space die.
    • One would imagine many space-folks - especially the danger-chasing type - would not wish to learn.
    • Later on in the Star Wars timeline, his daughter Jaina Solo witnesses the aftermath of a Yuuzhan Vong attack. Mention of explosively-decompressed bodies is made. Although maybe they just suffered the side effects of being on an exploding ship.
  • In Godwin's science fiction short story The Cold Equations, the young woman found stowed away inside of the EDS fearfully describes what she knows will happen to her if she's jettisoned through the airlock. Although it isn't a tremendously accurate picture of what would happen to someone stuck in the vacuum without a space suit, it certainly is a disturbing one.
  • Larry Niven's works tend to invert the trope, making vacuum relatively easy to deal with, usually by not having the pressure drop from 'normal' to hard vacuum in a fraction of a second unless the hole is pretty damn huge. In one short story, a ship's atmosphere escapes, when the crew are suited but not helmeted. They survive easily, because they have stashed the helmets within arm's reach; the only harm they suffer is annoyance, since they can't eat real food until they can get air and take the helmets off.
  • Charles Sheffield's The McAndrew Chronicles offers what seems like a realistic aversion in the Sturm Invocation, a training protocol that, when activated with a special whistle, invokes an involuntary reaction of quick blinks to preserve your eyesight plus other adaptations that allow one to stay in vacuum just long enough to cross a short distance (from one ship to another) and get to safety. The penalties for false activations are very severe.
    • Notably, blinking is inverted - instead of eyes open most of the time your eyes are closed most of the time. This has nothing to do with pressure, but is designed to prevent eye damage from excess UV radiation.
  • In Chindi, a poor pilot's lungs explode instantly after his ship's hull is breached.
  • Discussed and averted in the Eighth Doctor Adventures novel The Taking of Planet 5. The Doctor survives the vacuum of space just fine—he does, however, have temperature, cosmic radiation, and the bends to worry about.
  • Partial aversion in Ciaphas Cain: Death or Glory, which is a little odd for the usually pretty soft-science 40k setting. Cain and Jurgen end up in hard vacuum after a hull breach, but don't pop, and Amberley Vail's footnotes point the popping body out as a myth. However, Cain holds his breath in vacuum and doesn't suffer lung injuries.

    Live Action TV 
  • 1000 Ways to Die reenacted a (probable) Real Life example note  where someone accidentally opened a decompression chamber with a scuba diver inside. The chamber went from several atmospheres to one in a split second, and the unfortunate occupant exploded all over the walls.
  • Red Dwarf, "Confidence and Paranoia": Confidence, suffering from an ego the size of a small galaxy, declares "Oxygen is for losers!" and takes his helmet off outside of the ship. He then promptly explodes.
    • Possibly a parody, however, or more likely the comedy of the absurd, as Red Dwarf had a tendency to take every sit-com, western and sci-fi stereotype it could and run riot with them. It is the same show, after all, that, in an episode called 'DNA', had a giant mutated vindaloo-beast that could only be defeated with lager. Not the best show to look for scientific accuracy from - but an excellent show for trope deconstructions.
  • Implied (then averted) in an episode of Knight Rider: The evil KARR starts to drain the air out of his cabin with a hostage inside, saying "Have you ever seen someone explode in a vacuum?"
  • In Blake's 7 there was the infamous sequence where a person teleported into space would explode. Particularly weird here because (as it was Stock Footage) the figure blown up was the same one every time, so it looked as if the victim turned into a doll before expiring.
    • To be fair, the first time this happened it was explicitly explained that this was a side-effect of teleporting beyond the safe range. ("Their atoms would be scattered to the solar winds" - poetically put.)
    • Also, on the occasions when a character actually went out of an airlock instead of being teleported, there is no indication they explode and in the first case the body was clearly shown floating away intact.
  • Mentioned, though not shown, in Defying Gravity, an otherwise good show-disappointing, really.
  • An episode of Space Precinct had an alien with acid blood. When shot its green blood dissolved through the hull causing the corpse to be sucked out into space. A few seconds later it inflates and bursts.
  • Farscape references this in "Dream a Little Dream" when Zhaan has a nightmare about Crichton floating in space, his spacesuit visor cracking, and his head going pop, Outland-style. However, the series otherwise averts the trope on repeated occasions in which characters are shown exposed to vacuum with no explosive consequences. By the start of Season 4, D'Argo, Rygel, Noranti and Crichton had all been exposed to space, with Crichton actually surviving exposure for a minute-and-a-half wearing nothing more than street clothes (occurs during the "Look at the Princess" trilogy). Though the actual length of his vacuum exposure is uncertain, given that the scene was in Slow Motion.
    • In The Peacekeeper Wars, D'Argo and Chiana end up with their ship blown up and them exposed to space. D'Argo's survival is explainable as it's been mentioned that Luxan physiology can survive space exposure for up to a few minutes; Chiana is a Nebari, though, and the ability of Nebari to survive in space is undocumented.
  • Averted in Battlestar Galactica in an episode in which two characters are briefly exposed to space, but survive, albeit it takes them many episodes to recover.
  • Usually averted on Star Trek. In fact, on Star Trek, brief exposure to space will just leave you out of breath, when you would actually require medical care. They are, at least, consistent in this manner.
    • Enterprise displays a notable exception to this rule in the fourth season (after playing it straight in the first season, with the same chracter no less) when Archer is briefly exposed and spends the rest of the episode struggling to walk and breathe, with his eyes completely bloodshot.
      • ... which is probably the closest they've come to reality; both extremes of either "no side effects" or "instant explosion" are equally implausible.
    • In The Next Generation episode "Disaster", Dr. Crusher and Geordi are stuck in a shuttle bay with a radioactive fire, and decide to put it out by opening the bay door for a few seconds, removing the oxygen (and every other gas) from the bay. The good doctor even advises Geordi to hold his breath and "resist the urge to exhale" while in the vacuum. (As mentioned above, that's a good way to get dead even if you could otherwise be saved.)
    • Played Straight in a Noodle Incident Dukat mentions to Sisko in Star Trek: Deep Space Nine, which kept him from sleeping for a week.
    • Averted somewhat more realistically in the Star Trek Expanded Universe book Federation. When the shuttle bay explosively decompresses with the whole Enterprise-D command crew inside, everyone has to be treated for injuries sustained due to vacuum exposure after Data rescues them by shoving everyone into a shuttle. Wesley's worst off: having not gone through Starfleet Academy at this point and therefore not knowing you're supposed to exhale, he briefly tries to hold his breath and suffers lung damage.
  • An unusual non-sci-fi example, an episode of Castle deals with a victim of the week who dies from this. Much of the humour of the episode derives from Castle's belief that the victim must have been in space while Beckett's more down to earth about it. It turns out to have been a vacuum-packing machine.
  • Dr. Franklin on Babylon 5 mentions this trope — or rather, how it presumably plays out in Real Life — in regards to an incident in his childhood when one of his friends got spaced by accident.
    Dr. Franklin: The one thing they never tell you is that you don't die instantly in vacuum. He just hung there, against the black, like a puppet with his strings all tangled up or like one of those old cartoons where you run off the edge of a cliff and your legs keep going. You could see that he was trying to breathe, but there was nothing. And one thing I remember when they pulled in his body his eyes were frozen. [long pause] A lot of people make jokes about spacing somebody, about shoving somebody out an airlock. I don't think it's funny. Never will.
  • Shown as one of the two principal problems with fishing from high orbit in Mystery Science Theater 3000 (the other being the absurd length of line and amount of reeling in needed): by the time you've reeled the fish up to your space station, it'll have been shredded and ruined by escaping fluids.
  • Doctor Who:
    • In "The Ice Warriors", the leader of the titular monsters tortures the Doctor by trapping him in an airlock and drawing the atmosphere out of it. The Doctor, seemingly seriously, screams that he's going to explode. Maybe Time Lords are more fragile to decompression than humans?
      • Apparently not, given that during the Peter Davison era and again in the Eleventh Doctor story "The Doctor, The Widow and the Wardrobe", the Doctor is exposed to the full vacuum of space and withstands it, no ill effects. That said, it's possible the Doctor had never had this happen to him at the time of "The Ice Warriors" and as such wasn't sure what would happen to him.
    • Averted in "The Impossible Planet"; Scootie is launched into space (by Satan, sort of) when the section of the base she's in gets shattered, and her body is still completely intact; though a) this is a kid's show, so there was never going to be anything too gruesome, and b) her corpse is getting sucked into a Black Hole (hence the episode title, as said planet mantains a steady orbit around said Black Hole), so will likely result in 'Implosive Compression' before long.
  • In Stargate SG-1, a hijacker is inadvertently teleported into space. He remains conscious long enough to fire a few ineffective handgun shots at the heroes' ship, before his dying body bounces comically against the window.

    Tabletop Games 
  • The Paranoia mission "Clones in Space" is infamous for including an Explosive Decompression Table. This being Paranoia, you always die, but you can roll dice to randomly vary the exact manner in which you do so (exploding, charring, freezing, all of the above...)
  • Only War characters suffer explosive damage from depressurization if exposed to vacuum and eventually freeze.

    Video Games 
  • Most of the Space Quest games allow killing the main character by exposure to vacuum. The effects are inconsistent depending on the humor value, but for the same reason lean heavily towards explosions.
    • "Sudden decompression sucks!"
  • An underwater example can be found in Ecco II: Tides Of Time, where Vortex drones explode if they get too close to the surface. Neither Ecco nor any other creature have a similar risk of decompression.
    • Slighty Truth in Television: deep-sea fish have evolved to life under high pressure and consequently do not react at all well to pressure significantly higher in the water column: deep-sea fish brought to the surface usually have bulging eyes and their swim bladders protruding from their mouths. They don't explode, though.
  • In the Mothership Zeta add-on for Fallout 3, at one point you need to depressurize a section of the ship and walk through it wearing a space suit. However, if you do not wear the suit, or remove it while inside, Your Head Asplode.
  • Referenced in Ratchet & Clank - Tools of Destruction:
    "Congratulations! You've won an all-expenses-paid trip out the airlock! Hope you don't mind letting yourself out, I hate that popping sound of bodies decompressing in space."
  • Crystal Caves is set deep down in mines on an apparently airless planet. The only reason you're able to breathe is thanks to Air Generators scattered throughout the levels. If you carelessly shoot one of them... You've blown up an air generator! The vacuum rushes in and your body inflates like a balloon, then pops as your helmet sails away.
  • Averted in The Force Unleashed: When the Emperor orders Vader to kill you, he crashes you through a window to silently drift into space, but you get rescued shortly after and survive just fine.
    • Conceivably, Vader's lightsaber through Starkiller's chest immediately prior might have been responsible for emptying his lungs, thus saving his life.
  • Ironically averted in Dead Space 2. A Hackers RIG, in place of a proper helmet and armor, outfits you with a gas mask. And thick jacket. This may be a coincidence as the designers don't seem to mind unlikely feats of Postmortem antics, either.
    • Also, this trope (or in this case, lack thereof) reaches a ridiculous level in the last level of the Extraction spinoff, where the main character, seeing as his hand is impaled to the spaceship's outer hull, cuts it off.By hacking away at it with a rock saw. While it could be plausible that space suits were modular, and thus remained functional despite damage occurring to non-vital parts, it still doesn't even begin to explain how all of Nate's blood didn't get squeezed out like milk out of a carton the second he made the first cut.
  • Averted in Portal 2 In the ending, you make a portal to the moon, and you go flying out, hanging on to the badguy, who's also barely hanging on. You're exposed to the dead of space for almost exactly 15 seconds before being rescued, after which you pass out for an unspecified period of time before waking up.
  • Referenced in Sonic Colors, in one of Eggman's hilarious PA announcements:
    Dr. Eggman : If you experience explosive decompression, please try to avoid staining the seat cushions. Those things are expensive!
  • Inverted in FTLFasterThanLight. Being exposed to space doesn't even hurt crew members unless there's not enough oxygen, and they don't die in any sort of bodily explosion.
  • A recurring plot point in Ever17. There is an underwater amusement park that requires its guests to follow a decompression procedure before going to the park. Later, a character deliberately ignored the procedure in an attempt to save someone and some managed to survive.

    Web Comics 
  • Naturally, The Perry Bible Fellowship has its own sick contribution to the topic.
  • Averted in this Dark Legacy Comics strip.
  • Dragon Ball Multiverse: Unfortunately invoked during Chapter 16. After killing the rest of the Z-Fighters, Cell nabs Krillin and drags him into outer space. Once there, Krillin's brain and lungs explode almost immediately.
    • The explosive properties are debatable though. He doesn't burst open, we just see blood coming out of his mouth and nose, which actually is entirely possible in the vacuum of space, especially given that Krillin was fairly wounded already. Though, given that it is a comic and thus no movement, it's impossible to tell if this trope applies or not.

    Western Animation 
  • Used when The Simpsons' Itchy and Scratchy go into space. Scratchy's head blows up like a balloon; it explodes when Itchy pricks it with a pin.
    • Also when Homer and Bart accidentally board a shuttle of famous people headed for the sun, then jump out the airlock to get away from Rosie O'Donnell. They blow up and pop like balloons.
    • Although they then got it right(er) in one of the Treehouse of Horror episodes when Homer accidentally fires Bill Clinton and Bob Dole into space - they struggle for a bit, then expire.
  • Played for laughs in Sealab2021, where a couple people from Spacelab fall victim to this.
  • In the Robot Chicken episode "Maurice Was Caught", little orphan Annie is given Mars for her sweet sixteen party, and upon visiting it, trips and loses her space suit helmet. Guess what happens?
  • This gem in Futurama.
    Holographic Attila the Hun: No shoot fire stick in space canoe. Cause explosive decompression.
    Zapp Brannigan: Spare me your space age technobabble, Attila the Hun.
  • Brock Sampson gets briefly exposed to the vacuum of space in The Venture Bros., but survives due to his Made of Iron nature.
  • Metalocalypse: In the second episode, producer Dick "Magic Ears" Knubbler is leaving a submarine recording session in a bathysphere that's rising way too fast - the camera lingers an agonizingly long time on him screaming until his eyeballs pop. During the end credits, we see he's been fitted with a pair of robotic eyes and he's feeling great.
  • Averted in Inspector Gadget. After Gadget gets jettisoned out into space, all he needs to do to survive is equip his Gadget Space Helmet. Possibly justified in that we're never shown exactly how much of Gadget's body is still organic enough to be affected by a vacuum.

    Real Life 
  • The aforementioned Byford Dolphin accident is perhaps the only real case of truly Explosive Decompression. Be warned that the results are not for the faint of heart or those with an overly graphic imagination.
    The Other Wiki: Subsequent investigation by forensic pathologists determined Diver 4, being exposed to the highest pressure gradient, violently exploded due to the rapid and massive expansion of internal gases. All of his thoracic and abdominal organs, and even his thoracic spine were ejected, as were all of his limbs. Simultaneously, his remains were expelled through the narrow trunk opening left by the jammed chamber door, less than 60 centimetres (24 in) in diameter. Fragments of his body were found scattered about the rig. One part was even found lying on the rig's derrick, 10 metres (30 ft) directly above the chambers.
  • If the airliner you're in decides to dismantle itself at 30,000 feet you can expect ruptured lungs to be one of the clues that an in-flight breakup occurred during your autopsy. BOAC Flight 781 is one of the more notorious explosive decompressions to occur on a civilian airliner. Aloha Airlines Flight 243 did demonstrate that such an event is not necessarily completely fatal.
    • And it should be pointed out that an explosive decompression event on an aircraft can also kill in other ways. Consider, for example, Turkish Airlines Flight 981, in which an improperly locked cargo door on a DC-10 opened by itself while the plane was in mid air. The resulting pressure differential between the passenger cabin and the cargo bay immediately underneath caused the floor to buckle, severing numerous flight control systems. The plane almost immediately entered into an unrecoverable nosedive, with predictable results.
  • World War II crimes against humanity
    • The Nazis carried out scientific explosive decompression experiments in the death camps, with a view to working out survival techniques for submariners at great depths, or for aircraft crews in planes that were going ever higher and higher and subjected to diminishing air pressure. Unlucky and dispensible test subjects were placed in atmospheric chambers and subjected either to massively increased atmospheric pressure, or to the sort of atmospheric pressure to be found in deep space. Quite often they were used to test prototype high-altitude flightsuits and survival systems, and most of the conclusions drawn above were in fact scientifically proven by a regime that viewed some people as expendable lab-rats. While nobody wants to admit it, this Nazi research was in fact vital to post-war America and Britain, who reaped the benefits of Nazi science for their own military use whilst keeping their hands clean and staying morally spotless.
    • As did Japanese scientists working on in Unit 731.
  • There is a myth that has been circling the US military for several years about a sabot round fired from an Abrams tank into an M-113 with a sheep inside creating an explosive decompression that sucked the sheep through the exit hole but left the vehicle mostly intact. It is most likely a fabrication produced by the Army's rumor mill, as a sabot round uses shrapnel from the armor it displaces to destroy its target, and the targets are anything but intact afterwards.
  • An interesting note from a passenger on a plane which had a hole ripped in it in flight in 2011. A passenger noted:
    "The crew was pretty calm about it. They walked around and checked on everyone," he said. "But it wasn't like the movies where papers get sucked out of the hole, but you could feel it and hear the noise."
  • The crew of the spacecraft Soyuz 11 were killed when the ship's cabin depressurized during reentry. A valve was jolted open during the jettison of the service module causing the cabin's atmosphere to be gradually sucked into space.(the Russians didn't have their crews wear pressurized space suits at this time, they'd stopped a while back and only started it again after the incident.) Their fates were not known until the craft landed (the ground crew lost contact before the fatal incident, which happens normally) CPR was attempted by support crews on the dead Cosmonauts to no avail. They, as noted above, are the only deaths to occur during spaceflight that were a direct result of decompression. With relation to the trope, actual film footage exists of doctors performing CPR on the astronauts, and the bodies appear to be intact.
  • This is why it's hard to study deep-sea animals by bringing them out of the water; they often don't take decompression very well, and end up looking more like gelatinous globs than creatures. Or with deep-sea fish, they might come out with what looks like ping-pong balls in their mouths, but are actually their stomachs. The obvious solution, is to go into their environment to study them, but that's a very expensive and risky undertaking. We know more about the surface of the moon than we do about the deep ocean.


I say pressure drop
Oh pressure
Oh yeah, pressure gonna drop on you!
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