The Sound of Silence: NASA Probes Record Earth’s ‘Chorus’

Here’s a question for Science teachers to ask their classes: If space made a noise, what would it sound like? The reverberations of Neil Armstrong’s footsteps? Space junk clanging together?  The chatter of little green men? Or perhaps, early morning birdsong? Yes, unlikely as it is, Earth actually gives off a noise that most liken…

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