12/01/2021 12:30 PM | Click to read full article
In the year 774 AD, an enormously powerful blast of matter and energy from space slammed into Earth. Nothing like it had been felt on this planet for 10,000 years. A mix of high-energy light and hugely accelerated subatomic particles, when this wave impacted Earth it changed our atmospheric chemistry enough to be measured centuries later.
Our pre-electronic societies went entirely unaffected by it. But were this sort of event to happen today, the results would be bad.