When Humans Almost Died Out; Earthy Exoplanets; And <i>Scientific American</i>'s 165th Birthday

Podcast host Steve Mirsky talks with human evolution expert Kate Wong about the small group of humans who survived tough times beginning about 195,000 years ago and gave rise to all of us, a story told in the cover article of the August issue of Scientific American, our 165th anniversary edition. And Editor in Chief Mariette DiChristina talks about the rest of the contents of the issue, including our coverage of the search for rocky exoplanets. Plus, we test your knowledge about some recent science in the news. Web sites related to content of this podcast include http://snipurl.com/10louu Learn more about your ad choices. Visit megaphone.fm/adchoices