First, the good news: Your blood won't boil. On Earth, liquids boil at a lower temperature when there's less atmospheric pressure; outer spaceOuter space, commonly shortened to space, is the expanse that exists beyond Earth and its atmosphere and between celestial bodies.https://en.wikipedia.org › wiki › Outer_space
In space, there's a much different result. There's no gravity to pull blood into the lower part of the body. Instead, blood goes to the chest and head, causing astronauts to have puffy faces and bulging blood vessels in their necks.
You would still die of course, but it would be by asphyxiation. Your blood holds enough oxygen for about 15 seconds of brain activity. After that you'd black out, with complete brain death following within three minutes.
In space, there is no pressure. So the boiling point could easily drop to your body temperature. That means your saliva would boil off your tongue and the liquids in your blood would start to boil.
This occurs at around an altitude of 60,000 feet (approximately 11.4 miles or 18.3 kilometers) depending on exact atmospheric conditions.
First, the good news: Your blood won't boil. On Earth, liquids boil at a lower temperature when there's less atmospheric pressure; outer space is a vacuum, with no pressure at all; hence the blood boiling idea.
Instead, you would face another gruesome fate first: your blood, your bile, your eyeballs –will boil furiously, since the low pressure of the vacuum massively reduces the boiling point of water. It is only then that you would freeze.
In space we can assume that there would be no external organisms such as insects and fungi to break down the body, but we still carry plenty of bacteria with us. Left unchecked, these would rapidly multiply and cause putrefaction of a corpse on board the shuttle or the ISS.
Astronaut Thomas Jones said it "carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous." Tony Antonelli, another space-walker, said space "definitely has a smell that's different than anything else." A gentleman named Don Pettit was a bit more verbose on the topic: "Each time, when I ...
No, it would not stay blue, but only because it was never blue in the first place: Venous blood is a dark red/crimson color, as opposed to the bright-red arterial blood we see when someone bleeds on earth and it is exposed to atmospheric oxygen.
This leaves only high-energy blue light to be reflected from our maroon veins. So, if you cut yourself in space, your blood would be a dark-red, maroon color.
This would not happen. Though space is typically very cold -- most floating objects have a surface temperature of -454.8 degrees Fahrenheit -- a person would not instantly freeze because heat does not transfer away from the body very quickly.
After about one minute circulation effectively stops. The lack of oxygen to the brain renders you unconscious in less than 15 seconds, eventually killing you.
Moll was consulted by NASA when the discovery of the blood clot was made during the astronaut's mission on the International Space Station (ISS). This was the first time a blood clot had been found in an astronaut in space, so there was no established method of treatment for DVT in zero gravity.
On short missions, it's likely the body would be brought back to Earth. The body would need to be preserved and stored to avoid contamination (opens in new tab) of the surviving crew.
But in space, astronauts lost 3 million red blood cells per second during their six-month missions. The scientists say the reason red blood cells are being destroyed is likely due to fluid shifts the astronauts' bodies undergo to adjust to their weightless environment and back again.
It turns out that if the universe was infinitely large and infinitely old, then we would expect the night sky to be bright from the light of all those stars. Every direction you looked in space you would be looking at a star. Yet we know from experience that space is black!
No, there isn't sound in space.
This is because sound travels through the vibration of particles, and space is a vacuum. On Earth, sound mainly travels to your ears by way of vibrating air molecules, but in near-empty regions of space there are no (or very, very few) particles to vibrate – so no sound.
In 2009, astronomers were able to identify a chemical called ethyl formate in a big dust cloud at the center of the Milky Way. Ethyl formate happens to be responsible for the flavor of raspberries (it also smells like rum). Space tastes like raspberries! What a downright delightful thing for space to taste like.”
During spaceflight. As of March 2021, in-flight accidents have killed 15 astronauts and 4 cosmonauts, in five separate incidents. Three of them had flown above the Kármán line (edge of space), and one was intended to do so.
Laika, a Moscow street dog, became the first creature to orbit Earth, but she died in space.
Most likely though, you'd burn, disintegrate or in some way disappear. Until then, your body might decompose in space, but very slowly. It's more likely that your Earthly form would remain untouched for possibly millions of years, floating through the loneliest of landscapes.
While the zero gravity atmosphere does not have an impact on tears forming, it has an affect on if they fall, and they don't. The water that builds up in you eye from crying will stay there until the bubble gets so big it moves to another spot on your face, or it's removed.
Water poured into space (outside of a spacecraft) would rapidly vaporize or boil away. In space, where there is no air, there is no air pressure. As air pressure drops, the temperature needed to boil water becomes lower. That's why water boils much faster on a mountaintop than it does at sea level.
If all we want is to know whether blood can freeze, then it becomes a simple question, with the accompanying simple answer of yes. This answer though is only for when the blood is out of our bodies. Frozen blood occurs at a temperature of -2 to -3°C.