Question

Why do astronauts spacesuits have radio sets?

Answer 1

Explanation:

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!

When astronauts are inside the International Space Station, they're in a simulated atmosphere. It allows them to breathe without wearing space suits all the time. Inside the space station, sound waves travel like they do on Earth, and astronauts can whistle back and forth as much as they like—as long as they don’t annoy the other astronauts!

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