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Sound doesn't propagate in space, or in any place without an atmosphere such as the surface of the moon. Sound is mechanical energy, and the energy must be "put into" the material (gas, liquid, solid) that is used to propagate it. This is in contrast to electromagnetic energy, like light, which is "self-contained" and can move through the vacuum of space. Astronauts can communicate by normal conversation inside a spacecraft or in the International Space Station. This is because pressurized air is introduced to simulate conditions on the earth (and allow astronauts to breathe). They can talk normally and be heard. But during a "space walk" or on the surface of the moon, all communication is by radio, even between individuals who are only a few feet apart. An interesting note is that two individuals who are "outside" can turn off their communications gear, press their face plates together, and have a conversation that no one else can hear. This lends new meaning to the term private conversation.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoIf the astronaut is in a pressurized suit or capsule, you need air for sound to travel.
So in a suit, pressurized to 3 PSI, the speakers in the helmet will transmit sound.
If an astronaut is watching another spacecraft fire its engines, he won't hear the roar, as the sound cannot transmit through the vacuum of space.
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Do astronauts sleep in outer space?
Yes. Extra Fact: When in space, no one can hear you scream.
Why can astronauts not hear one another when traveling in space?
The light waves they reflect travel through empty space but sound waves do not.
Can astronauts speak in space?
Yes, astronauts talk in space, as they always have acess to oxygen.(using radios)
Why do astronauts use space pen?
astronauts use space pen because as there is 0gravity in space ink will not fall on the paper
Why do you have astronauts?
Well, to explore space ofcourse. Astronauts go to space to find new planets or such. They observe what is happening.
To hear astronauts in space the sounds waves are converted to?
rocket
Do astronauts sleep in outer space?
Yes. Extra Fact: When in space, no one can hear you scream.
Can you hear can you hear through space suits?
Indeed! You can't hear what's going on around you, but you can hear other astronauts through their radio.
Why astronauts cannot hear each other in space?
Space is vacuum, and sound can't travel in vacuum.
How can people hear astronauts voices from space?
The voices are transmitted via radio.
How do astronauts hear in space?
They can't because sound needs something to bounce of like air.
What conditions must astronauts prepare for when traveling to space?
No one being able to hear them scream.
Would astronauts be able to hear an explosion on the moon?
no, sound cannot travel to the vacuum of space
Why can astronauts not hear one another when traveling in space?
The light waves they reflect travel through empty space but sound waves do not.
What types of astronauts are there on a space mission?
trained space astronauts
Astronauts are--who fly in space?
Astronauts are people who fly in space
What do Astronauts do on space station?
The astronauts can float in the
