SOLAR SYSTEM

Detailed explanation-1: -Space has no air. Since sound waves require a material medium to propagate, therefore, astronauts cannot talk to each other in space.

Detailed explanation-2: -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!

Detailed explanation-3: -Space, being an almost perfect vacuum, does not allow sound to travel and be heard by the ears. Sound is vibrations of air particles, so any “sound” that is heard in space has to come from another source. As such, astronauts communicate with each other in space when they are spacewalking through the use of radio waves.

Detailed explanation-4: -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.

Detailed explanation-5: -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.

Detailed explanation-6: -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.

Detailed explanation-7: -The ISS is a place where astronauts do science experiments while in space. Astronauts also learn to eat, exercise, and do experiments while floating in the air. They also practice riding in special vehicles that are just for space. These vehicles bring supplies like food and fuel to the ISS.