The global "hum" of the Earth is now helping scientists probe the planet's deep interior, a group of researchers say. Since this hum — called seismic noise, which is generated by sources such as storm ...

Every time a bolt of lightning strikes the Earth, it sends out a pulse of electromagnetic energy. That energy bounces around the globe, generating a steady, imperceptible hum called the Schumann ...

When a mountainside collapsed into a remote Greenland fjord in 2023, it did far more than send a wall of water racing toward the cliffs. The impact launched a 650-foot wave that sloshed back and forth ...