Particle storm could hit Earth next week. On Friday, NASA observed the most violent solar flares in recent years.
The consequences could also be felt on Earth - and disrupt power grids and communication systems. During such an eruption, the sun ejects billions of tons of charged particles into space that travel at the speed of light. Such eruptions could disrupt communications waves, power. grids and navigation signals, among other things, and also posed a risk to. spacecraft and astronauts, it said.