How do astronauts talk if there is no sound in space?

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
radios
In the mid 1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance radio communication.
https://en.wikipedia.org › wiki › Invention_of_radio
 to communicate—even if they're floating in space right next to each other!


Can astronauts talk in space without any device?

Sound requires a medium for propagation. Therefore, two astronauts floating close to each other in space will not be able to talk to each other without using any special device because in space there is vacuum ( no material medium).

How do astronauts communicate in space without radio?

The astronauts have devices in their helmets which transfer the sound waves from their voices into radio waves and transmit it to the ground (or other astronauts in space). This is exactly the same as how your radio at home works.


Can you hear sound in empty space?

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.

How can astronauts talk in space?

While wearing the current space suits, astronauts wear a Communications Carrier Assembly (CCA), or "Snoopy Cap" — a fabric hat fitted with microphones in the ear area for listening and boom microphones in front of the mouth for speaking. These caps are worn under the helmet and visor that surround an astronaut's head.


Helen Sharman on how astronauts communicate in space



Can we hear our own voice in space?

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.

Why can't astronauts whistle on the moon?

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!

What does space smell like?

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 ...


Why is space completely silent?

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.

Is there any sound in a black hole?

In 2003, astronomers detected something truly astonishing: acoustic waves propagating through the copious amounts of gas surrounding the supermassive black hole at the centre of the Perseus galaxy cluster, which is now renowned for its eerie wails. We wouldn't be able to hear them at their current pitch.

Why can't we talk in space?

Sound is a mechanical wave and requires a material medium for propagation. There is nothing in space. There is no atmosphere. Even if the astronauts are floating in the atmosphere next to each other they can't hear each other.


Can astronauts listen to music in space?

For almost as long as there's been an International Space Station, there have been astronauts playing music onboard. There was historical precedent. Gemini astronauts Walter Schirra and Thomas Stafford famously played "Jingle Bells" in space Dec.

Do astronauts Facetime in space?

How do astronauts contact their families from the ISS? What is this? They have access to a computer that is equipped with a VoIP system. This allows them to make video calls to their loved ones or just about anyone on Earth.

Can you ring a bell in space?

A bell ringing in a bell jar will become quiet when the air is removed from the bell jar. Since sound is caused by vibrating material and all of the material has been removed from the bell jar there is no sound. This means that there is no sound in space.


Can two person hear each other in space?

So astronauts cannot hear each other in space as sound cannot travel in space.

Can two astronauts listen to each other?

Answer: 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.

Why is it impossible to cry in space?

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.


What breaks silence of space?

The silence of space was broken by a sudden roaring sound of the river. Was this answer helpful?

Is there fire in space?

Fires can't start in space itself because there is no oxygen – or indeed anything else – in a vacuum.

Would a body decompose in space?

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.


Why can't we see stars in space?

The answer: The stars are there, they're just too faint to show up.

Does space have a end?

No, they don't believe there's an end to space. However, we can only see a certain volume of all that's out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn't had time to reach us yet, so we have no way of knowing such a galaxy exists.

Why do astronauts not snore?

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.


Can you breathe oxygen on the moon?

Although the Moon does have an atmosphere, it's very thin and composed mostly of hydrogen, neon and argon. It's not the sort of gaseous mixture that could sustain oxygen-dependent mammals such as humans.

Can a human breathe on the moon?

Although you might think it would be cool, humans could not live on the moon! (Maybe one day in the future…) The moon has almost no atmosphere, so there's no air for us to breathe. There is no water on the moon either, and we need to drink water to survive.