Quote by Brien Foerster

“The spherules [that could only have formed from the combustion of rock] also were found at 17 other sites across four continents, an estimated 10 million metric tons' worth, further supporting the idea that whatever changed Earth did so on a massive scale. It's unlikely that a wildfire or thunderstorm would leave a geological calling card that immense, covering about 50 million square kilometers. 'We know something came close enough to Earth and it was hot enough that it melted rock, that's what these carbon spherules are. In order to create this type of evidence that we see around the world, it was big,' Tankersley says, contrasting the effects of an event so massive with the 1883 volcanic explosion on Krakatoa in Indonesia. 'When Krakatoa blew its stack, Cincinnati had no summer. Imagine winter all year round. That's just one little volcano blowing its top.”

Quote by Brien Foerster