Science How a massive solar storm almost wreaked havoc on Earth – but didn't (+video)

The event two years ago this week was the most powerful solar storm ever recorded. It could have triggered widespread power failures and wreaked havoc on satellites.

By , Staff writer

ESA&NASA/SOHO

This week marked the second anniversary of the most powerful solar storm earthlings have ever recorded – an enormous eruption of billions of tons of roiling hot gas that hurtled from the sun at some 5.6 million miles an hour.