A ‘GROUND LEVEL EVENT’ IS UNDERWAY: Today’s X5-class solar flare from sunspot 4274 hurled a fuisillade of energetic protons toward Earth. Some of the particles are so powerful, they are penetrating the atmosphere all the way to the ground. “This is a very significant event,” says Professor Clive Dyer of the Surrey Space Centre. “Neutron monitors around the world are detecting it.”
