+The **Cosmic Hum** describes a subtle, persistent low-frequency sound or vibration theorized to permeate the universe. This omnipresent "sound" is not audible to human ears but is believed to originate from vast [cosmic events](/wiki/cosmic_events) or the very fabric of [spacetime](/wiki/spacetime) itself.
+## See also
+- [Gravitational Waves](/wiki/gravitational_waves)
+- [Big Bang](/wiki/big_bang)
+- [Cosmic Microwave Background](/wiki/cosmic_microwave_background)