Question

why do astranauts talk to each other through radio telephone in space?

Answer 1

because ,
we need a medium to talk ..
like - air,water,etc
but there is vaccum in space....
and sound not travel in vaccum..
that's why they use radio telephone in space...
plzzz mark as brainlist

Answer 2

Sound cannot travel through the vacuum of space, but visible light and other forms of electromagnetic radiation . The astronauts have devices in their helmets which transfer the sound waves from their voices into radio waves in space