SPACE, they say, is as silent as the grave. But they are only half right. Space is full of sounds – it’s just that our ears are not tuned to pick them up.
Compressing a medium creates sound. On Earth, we squash the atmosphere when we sing or shout. Much of space also has an atmosphere of sorts, although thousands of times thinner than Earth’s. Because the wavelength of any sound must exceed the distance between the particles in the medium, any noise created in space is at a frequency many times lower than anything we can hear.
What exactly is…
