October 9, 2012July 24, 2024 Joe Quinn Comets, plagues, tobacco and the origin of life on earth Meteorites, sixth extinction There is hard scientific evidence that life on earth was, at least partly, the result of organisms deposited by comets. There is also plausible scientific Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email More Click to share on Pocket (Opens in new window) Pocket Click to share on Tumblr (Opens in new window) Tumblr Click to print (Opens in new window) Print Click to share on Reddit (Opens in new window) Reddit