NPR Story
10:41 am
Fri July 19, 2013

Eruptions on the Sun Set Off 'Solar Tsunamis'

Originally published on Fri July 19, 2013 12:03 pm

Two recent eruptions on the sun sent solar tsunamis sweeping across its surface. Physicist David Long reported on the tsunamis in the journal Solar Physics, and he says the waves allowed him to calculate the magnetic field of a "quiet" area on the solar surface, which is 10 times weaker than a fridge magnet.