Muons reveal the whopping voltages inside a thunderstorm
Physicists used subatomic particles to probe the inner workings of a cloud
![thunderstorm](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/02/021419_EC_muon-tstorm_feat.jpg?fit=860%2C460&ssl=1)
STORM SURGE Subatomic particles called muons can expose a thunderstorm (like this one) storing up a huge electric potential — more than a billion volts.
Ian Froome/Unsplash