Carrington Event: The Solar Storm That Could Blackout the Grid

In 1859, a solar storm known as the Carrington Event sent telegraph wires sparking and set the stage for the biggest “what if” in space weather history. In this episode, we explore how a repeat Carrington Event could threaten the modern grid, power lines, satellites, GPS, and the systems that keep daily life running — listen now to hear why the Sun is still a risk we can’t ignore.The Carrington Event was a 1859 solar storm so powerful it sparked telegraph wires and became the benchmark for a worst-case geomagnetic storm. In this episode, we unpack what happened, how coronal mass ejections drive space weather, and why a repeat could stress the modern power grid, satellites, GPS, and communications.• The 1859 event remains the largest geomagnetic storm in the instrumental record. • Telegraph systems literally sparked, shocked operators, and sometimes worked with batteries disconnected. • A modern Carrington-level storm could disrupt transformers, navigation, and timing systems. • Monitoring from NOAA and NASA gives warning, but extreme storms still carry real risk. Chapter labels: Richard Carrington’s telescope | Telegraphs on fire | From CME to geomagnetic storm | What a repeat could do nowRelated resources and links: [More episodes on space weather](#/space-weather), [Subscribe to the show](#/subscribe), [NOAA Space Weather Prediction Center](https://www.swpc.noaa.gov), [NASA Solar Dynamics Observatory](https://sdo.gsfc.nasa.gov)If this story changed how you think about the Sun, share it with a friend and tell us what system you think would fail first.