12 tiny worlds

Warming waters are an existential threat to coral reefs, and for people who want to restore them. But in the Republic of Palau, researchers are testing out an approach to help restored reefs survive hotter temperatures — before it's too late. To watch this episode on video, find ...  Show more

Dismissing pseudoscience is too easy. Understanding why it spreads so quickly is harder. It can teach us why real science works and how to spot the difference between the two. To watch this episode on video, find us on Netflix! Guest: Hank Green, creator of SciShow and Crash Cour ...  Show more

Two SciAm editors duke it out to see if wormholes and multiverses could in fact exist. Learn more about your ad choices. Visit megaphone.fm/adchoices 

Is evolution universal throughout the cosmos? What are the different forms that life can take? When did life first appear in the universe? I discuss these questions and more in today's Ask a Spaceman!

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Sign up for the Great Courses Plus today and enjoy the first month for free: https://bit.ly/podcast-great-courses-plus We know the history of this planet and asteroids isn't good...just ask the dinosaurs. So, what if we were faced with the same situation now? How much time wou ...  Show more

So imagine that all of the reports of UFO's, visitations and alien abductions were true...but sort of not? Confused? How about instead of "aliens" being alien, they were actually humans travelling back in time from the future to study their origins as a species? This is the thesi ...  Show more