
Three high-speed solar explosions known as coronal mass ejections (CMEs) are set to slam into Earth's magnetic field this weekend, bringing stunning auroras as far south as New York and Idaho.
Striking Earth in succession on Aug. 9, 10 and 11, the CMEs will coincide with the peak of the Perseid meteor shower, according to a National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center alert.