Here are the US cities most vulnerable to space weather

Here’s a map showing the US cities most vulnerable to space weather. The rings on the map indicate transformers that are most ‘connected’ to the network and that may therefore be the most vulnerable during stormy space weather. Image via British Geological Survey/ Royal Astronomical Society (CC BY 4.0).

• Washington, D.C., and Milwaukee are two of the most vulnerable U.S. cities to space weather, according to scientists from the British Geological Survey.
• The scientists are still...