Astronauts can't cry the same in space as they do on Earth. Your eyes make tears but they stick as a liquid ball. In fact, they sting a bit. So — space tears don't shed." Unless an astronaut wipes that water away, tears in space can form a giant clump that can break free of your eye, as The Atlantic explained.
However, as astronaut Chris Hadfield notes, in microgravity, "your eyes make tears but they stick as a liquid ball." In other words, astronauts technically can't cry. Sure, you can get a watery substance to come out of your eyes, but it doesn't fall like it ordinarily does on Earth.
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.
Pee is more than 90% water. Since water is heavy and takes up a lot of space, it is better to recycle pee rather than bring up clean water from Earth. All astronaut pee is collected and turned back into clean, drinkable water. Astronauts say that “Today's coffee is tomorrow's coffee!”
In space there will be no medium for sound waves to travel and it will be vacuum. Sound cannot travel in vacuum hence sound cannot be heard without any special device.
NASA is the only space agency in the world that has this regulation. NASA's official explanation for this regulation is that the presence of a married couple aboard a space mission could potentially become disturbing to the other astronauts.
Because there is nothing out in space (like an atmosphere), the sound waves from one astronaut's whistling can't travel over to the other astronaut's ears. That's why the astronauts use radios to communicate—even if they're floating in space right next to each other!
Relatedly, your boner will probably suffer. Blood flow is essential to get an erection, and lower blood pressure would mean it would be harder to get an erection — and harder to keep it going. There's another issue that might make your stiffy collapse — testosterone levels fall while in space.
On Earth, farts are typically no big deal — smelly, harmless, and they quickly dissipate. But if you're an astronaut, every fart is a ticking time bomb. The gases in farts are flammable, which can quickly become a problem in a tiny pressurized capsule in the middle of space where your fart gases have no where to go.
Astronauts who work for civilian agencies like NASA earn a base salary of $104,898 per year. However, their salaries can increase to $161,141 per year. Furthermore, SpaceX founder Elon Musk said that he would be willing to pay his astronauts up to $500,000 for a trip to Mars.
Astronauts can't cry the same in space as they do on Earth.
Astronauts can laugh in space all they want, but the act of crying is quite different without gravity.
A succession of astronauts have described the smell as '… a rather pleasant metallic sensation ... [like] ... sweet-smelling welding fumes', 'burning metal', 'a distinct odour of ozone, an acrid smell', 'walnuts and brake pads', 'gunpowder' and even 'burnt almond cookie'.
Space Environment
So, in order for sound to travel, there has to be something with molecules for it to travel through. On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.
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 ...
Are human beings the only animals that produce tears when they cry? If you define crying as expressing emotion, such as grief or joy, then the answer is yes. Animals do create tears, but only to lubricate their eyes, says Bryan Amaral, senior curator of the Smithsonian's National Zoo.
While space is more silent than you could ever imagine, it's not completely devoid of sound. Sound waves cannot travel through space, but there are some infinitesimally small regions where sound can exist, under very specific conditions.
Are the colors in space photos real? No, they are not. The Webb telescope sees in red. It's up there specifically to detect infrared light, the faintest and farthest light in the cosmos.
For example, like Earth, Mars has seasons, meaning seasonal changes in its atmosphere and weather. But the Martian atmosphere is much thinner than Earth's, meaning atmospheric pressure is so low that the blood of any unprotected visitor would boil.
nothing much. The uterus is pretty good at expelling its lining sans gravity, it turns out (after all, lying down doesn't seem to matter much). Dealing with space tampons is something of a nuisance, though, and space cramps aren't probably any nicer than Earth cramps.
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.
That's because there is less airway obstruction in space, flight surgeon Dr. J.D. Polk said. "Earthly snoring occurs when gravity pulls the tongue and soft tissues in the rear of your mouth backward," he said. "If your airway is partially obstructed you get these tissues flapping.
Its rotation period and its orbital period are the same. Thus we cannot see the far side of the Moon; if it did not rotate, we could see all parts of it from Earth over the course of a month.
Radio waves can't actually pass through the Moon - which is the reason why it's difficult to communicate with astronauts on the Moon's far side, and also why scientists think it would be an amazing idea to put a radio telescope back there, where it wouldn't encounter interference from terrestrial radio emissions.
The Outer Space Treaty
There is no claim for sovereignty in space; no nation can “own” space, the Moon or any other body. Weapons of mass destruction are forbidden in orbit and beyond, and the Moon, the planets, and other celestial bodies can only be used for peaceful purposes.
The bones break down in the legs, hips, and spines. The loss of calcium renders them weaker, and more prone to injuries once the astronauts are back on Earth. Over time, the muscles in the legs and back atrophies and weaken too. This will result in a loss of mobility after landing on earth.