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, 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. And appearance isn't the only ugly side effect.
It's also very cold in space. You'll eventually freeze solid. Depending on where you are in space, this will take 12-26 hours, but if you're close to a star, you'll be burnt to a crisp instead. Either way, your body will remain that way for a long time.
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.
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.
Other astronauts have described it in similar yet varying ways: "burning metal," "a distinct odor of ozone, an acrid smell," "walnuts and brake pads," "gunpowder" and even "burnt almond cookie." Much like all wine connoisseurs smell something a bit different in the bottle, astronaut reports differ slightly in their " ...
If you do die in space, your body will not decompose in the normal way, since there is no oxygen. If you were near a source of heat, your body would mummify; if you were not, it would freeze. If your body was sealed in a space suit, it would decompose, but only for as long as the oxygen lasted.
Microgravity has been shown to be detrimental to wound repair. Astronauts injured in space have a harder time healing. The cells cultured in microgravity and the cells cultured on earth will differ in gene expression. Blood vessel development will be impaired in cells cultured in microgravity.
It's red because of the red blood cells (hemoglobin). Blood does change color somewhat as oxygen is absorbed and replenished. But it doesn't change from red to blue. It changes from red to dark red.
Part of Hall of the Universe. Every atom of oxygen in our lungs, of carbon in our muscles, of calcium in our bones, of iron in our blood - was created inside a star before Earth was born.
A small hole of ~3mm or less diameter would leak slowly enough to be survivable. Without air in the suit, an astronaut will lose consciousness in no more than about 10-15 seconds; death will follow within a minute.
Your body will freeze solid and float forever in the vastness of space. While this won't happen immediately, the deep cold of space is -455F (-270 C) which will cause frostbite on exposed skin within seconds and you'll likely freeze completely solid in about a day.
According to the National Aeronautics and Space Administration, the coldest point in the cosmos is the Boomerang Nebula. According to NASA, the Boomerang Nebula is the coldest spot in the known cosmos, with a temperature of one degree Kelvin. One degree Kelvin is 458 degrees Fahrenheit, or roughly 272 degrees Celsius.
This bone loss begins within the first few days in space. The most severe loss occurs between the second and fifth months in space, although the process continues throughout the entire time spent in microgravity. Extended stays on Mir have resulted in losses of bone mass of as much as 20%.
Key Takeaways: Would Water Boil or Freeze in Space? Water immediately boils in space or any vacuum. Space does not have a temperature because temperature is a measure of molecule movement.
In either case, you could never get to the end of the universe or space. Scientists now consider it unlikely the universe has an end – a region where the galaxies stop or where there would be a barrier of some kind marking the end of space.
The veins themselves are not blue, but are mostly colorless.
Sulfhemoglobinemia is a rare condition in which there is excess sulfhemoglobin (SulfHb) in the blood. The pigment is a greenish derivative of hemoglobin which cannot be converted back to normal, functional hemoglobin. It causes cyanosis even at low blood levels.
What color is blood? There's no need to build up the suspense: Blood is red. It might vary from a bright cherry red to a dark brick red, but it's always red.
According to NASA astronaut with over 30 years of experience, female astronauts generally wear bras in space, not for support, but for comfort and modesty. Cameras are placed all over the space station, and the bras can help protect their privacy from male astronauts.
Your body would cope better than expected in space without a spacesuit. Well, you'd still die, but at least you wouldn't explode! Surprisingly, you probably wouldn't explode. Skin is almost completely gas-tight and strong enough to withstand a pressure differential of well over one atmosphere.
In part that's because it has never happened. Over decades of Apollo, Mir, Skylab, space shuttle, and International Space Station missions, astronauts have had medical concerns and problems—and, of course, there have been deadly catastrophes. But no astronaut has ever had a major injury or needed surgery in space.
Maiden flights. The first space burial occurred in 1992 when the NASA Space Shuttle Columbia (mission STS-52) carried a sample of Gene Roddenberry's cremated remains into space and returned them to Earth. The first private space burial, Celestis' Earthview 01: The Founders Flight, was launched on April 21, 1997.
There would be nothing to cause the body to change, and so it would remain. There would be a slow breaking down of surface proteins, due to UV light, and eventually micrometeorites would erode the body, but these processes would take many millions of years. Save this answer.
As of Jun 11, 2023, the average annual pay for a Nasa Astronaut in the United States is $46,585 a year. Just in case you need a simple salary calculator, that works out to be approximately $22.40 an hour.