Earth’s magnetic north is not static. Like an anchorless buoy pushed by ocean waves, the magnetic field is constantly on the move as liquid iron sloshes around in the planet’s outer core.
David Helvarg Fire has always played a crucial role in Southern California’s ecosystem, which features dry conditions and strong, hot desert winds called the Santa Anas, which blow from the east each ...
In January 2022, the undersea volcano Hunga Tonga-Hunga Ha’apai erupted spectacularly, becoming one of the most powerful volcanic events of the century. It sent a plume 50 kilometers high, impacting ...
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