What do you hear inside your spacesuit while floating in space?

In space there is silence. No one can hear your screams in space. Yes, that's all true. But inside your space suit, while things are cushioned, there is enough noise.

Background noise

Sound is a vibration and travels through the air. The particles vibrate, collide with adjacent particles and propagate the sound like an audible mechanical wave. But in a low Earth orbit, as we could be if we left our space station to take a walk outside, there are not enough particles to cause collisions and spread the noise.

As abounds in it Tim Peake in his book What does space smell like?:

During a spacewalk, for example, I could bang the hook of my wire rope against a metal piece of the space station and not hear anything. That same collision between metals would have caused a great crash on Earth.

But this does not mean that inside our space suit there is silence:

On the contrary, the space suit works at full capacity to keep you with vines and for this you need pumps, fans and an air flow, all of which creates a considerable scandal. Inside the space helmet we wear a communications helmet that incorporates a headset and a microphone and provides some noise isolation.

Living in the International Space Station also means being surrounded by atrocious noise all the time.

Video: What Would Happen If An Astronaut Floated Away Into Space? (April 2020).