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  Have you ever wondered how astronauts talk to each other in the vast silence of space? Space isn’t like Earth—there’s no air to carry sound waves, so traditional speaking and hearing methods don’t work outside a spacecraft or space suit. Yet, astronauts communicate seamlessly with each other and with mission control back on Earth. Let’s dive into the fascinating world of space communication and learn how astronauts talk in space . Why Can’t Sound Travel in Space? To understand how astronauts talk in space, it’s important to grasp a basic scientific fact: space is a vacuum . A vacuum means there is no air or atmosphere to carry sound waves. On Earth, when we speak, our vocal cords create vibrations that travel through the air to reach someone else’s ears. In space, since there is no air, sound has no medium to travel through. That’s why astronauts cannot hear each other directly if they are outside the spacecraft without using special equipment. Communication Inside the Spacecra...