The voices are transmitted via radio.
Astronauts can hear each other's voices when their helmets are touching because sound can be transmitted through solid materials, such as the helmet's surfaces. When one astronaut speaks, the vibrations of their voice travel through the helmet and into the other astronaut's helmet, allowing them to hear each other despite the vacuum of space surrounding them. This method of sound transmission is similar to how people can hear each other when they are connected by a solid object, like a wall.
rocket
Yes. Extra Fact: When in space, no one can hear you scream.
Indeed! You can't hear what's going on around you, but you can hear other astronauts through their radio.
Space is vacuum, and sound can't travel in vacuum.
Cos they have ears
Astronauts can hear each other when they touch helmets because their spacesuits are equipped with communication systems that include microphones and earpieces, allowing them to transmit and receive sound even in the vacuum of space. When helmets make contact, the vibrations from their voices can also travel through the material of the helmets, enabling them to hear each other more clearly. This combination of technology and physical contact allows for effective communication in the challenging environment of space.
* Why do people jump when they hear loud voices? It is because they are frightened
They can't because sound needs something to bounce of like air.
No one being able to hear them scream.
The light waves they reflect travel through empty space but sound waves do not.
space is a vacuum there fore any noise generated would be sucked into this vacuum before anyone could hear it. the astronauts are enclose in air tight suits with oxygen pumped in . they can hear and speak to other people through radio signals