Lightning strikes link weather on Earth and weather in space

By Lauren Blum, Assistant Professor of Atmospheric and Space Physics, University of Colorado Boulder

There are trillions of charged particles – protons and electrons, the basic building blocks of matter – whizzing around above your head at any given time. These high-energy particles, which can travel at close to the speed of light, typically remain thousands of kilometers away from Earth, trapped there by the shape of Earth’s magnetic field.

Occasionally, though, an event happens that can jostle them out of place, sending…

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