<p>The mist from a cataclysmic volcanic eruption in 2900 BCE would have been 'extremely frightening.'</p> <p>The post <a href="https://www.popsci.com/science/volcano-sacrifice-sun-stones/">Neolithic Europeans sacrificed stones to beg the sun to return</a> appeared first on <a href="https://www.popsci.com">Popular Science</a>.</p>