6 Extraterrestrial disasters that make us glad we are on Earth

Earth has plenty of natural disasters and tragedies; we have tornadoes that rip up the Midwest yearly, hurricanes that flatten and drown cities, and volcanic eruptions that evacuate entire island nations. But the rest of the solar system is a much harsher place, with disasters that would end life as we know it if they happened here. 1. Volcanoes on Io Volcanoes are a big deal here