Explore whether catastrophic events such as volcano eruptions, ice ages and asteroid strikes spell out a bleak future for the existence of humans on planet earth. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheunivrseworksseries <br />#season3 <br />#episode6 <br />#weaponsofmassextinction <br />#extinction <br />#cosmology <br />#astronomy <br />#spacescience <br />#spacetime <br /><br />
