In space, no one can hear you scream. This is because there is no air in space – it is a vacuum. Sound waves cannot travel through a vacuum.
Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.
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.
Sound is a mecanical wave, which means that it needs substance to travel through, such as air or water. In space, there is no air, so sound has nothing to travel through. If someone were to scream in space, the sound wouldn't even leave their mouths.
The distance between all celestial bodies is, presumably, nothing but vacuum. In other words, space is mostly vacuum but not quite.
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 ...
Astronauts may have no trouble moving heavy objects in the weightlessness of space, but that doesn't mean that the experience isn't hard on their backs. Astronauts on long-duration spaceflights routinely report back pain, both during and after the flight.
Since tears on Earth only stream down a person's face because of gravity's influence, tears shed in microgravity do not fall. Instead, they pool on the face and could eventually drift off in little droplets that disperse throughout the orbiting science laboratory.
No, you cannot hear any sounds in near-empty regions of space. Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.
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.
REAL SPOILER ALERT: The short answer is that the lack of oxygen would make you black out after about 15 seconds. Then by about 90 seconds you are too far gone to be saved. So you would die from lack of oxygen well before the radiation and cold would have time to kill you.
There's a limit to how much of the universe we can see. The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).
The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
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.
Previous research has shown that spending time in space causes bone density loss, immune dysfunction, cardiovascular issues such as stiffening of arteries, and loss of skeletal muscle mass and strength in both humans and rodent models. These changes resemble aging in people age on Earth, but happen more quickly.
The Sun does indeed generate sound, in the form of pressure waves. These are produced by huge pockets of hot gas that rise from deep within the Sun, travelling at hundreds of thousands of miles per hour to eventually break through the solar surface.
So astronauts cannot hear each other in space as sound cannot travel in space. Q.
Sound waves need to travel through air to produce a sound. As there is air on a spacecraft, musical instruments should still work. However, it might not work if you try to play outside of a shuttle or space station. On a violin or guitar, the strings would vibrate without producing a sound.
Without gravity, hot air expands but doesn't move upward. The flame persists because of the diffusion of oxygen, with random oxygen molecules drifting into the fire. Absent the upward flow of hot air, fires in microgravity are dome-shaped or spherical—and sluggish, thanks to meager oxygen flow.
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.
“Alcohol is not permitted onboard the International Space Station for consumption,” says Daniel G Huot, spokesperson for Nasa's Johnson Space Center. “Use of alcohol and other volatile compounds are controlled on ISS due to impacts their compounds can have on the station's water recovery system.”
And it does indeed appear to be the case the no one can hear you scream in space, as by the time the device's launch balloon burst at 33 kilometres above the Earth – the altitude at which there is only about 3/1000th of the amount of air press as at ground level – the screams, which were initially loud at ground level ...
The founder of astrogeology, Gene Shoemaker, is the only person to date whose ashes have been buried on the moon. Despite being a scientist of great esteem, Shoemaker's health problems and early death in an automobile accident caused him to be unsung. Born in 1928 in Los Angeles, Shoemaker received his Ph.
Why can't we see stars in the pictures of spacewalking or moonwalking astronauts? The stars aren't visible because they are too faint. The astronauts in their white spacesuits appear quite bright, so they must use short shutter speeds and large f/stops to not overexpose the pictures.