A tsunami warning issued for Hawaii after one of the strongest earthquakes ever recorded, an 8.8 magnitude in Russia's Far ...

Scientists have found evidence of the most powerful storm in history, which hit Earth in 14,300 years ago. It would cause mayhem in today's technology-dependent world.

"This event establishes a new worst-case scenario."However, one quirk of geomagnetic storms is that they temporarily increase the amount of the radioactive carbon-14 that's constantly raining down ...