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Earth Is a Hot Mess

Episode number: 1

Overview: Bill calls out climate change deniers, breaks down the science of global warming and explains how we can make the planet a cooler place to live.

Tune Your Quack-o-Meter

Episode number: 2

Overview: Bill and his panel of experts debunk bogus alternative remedies like homeopathy, the healing power of magnets ... and curing cancer by yelling at it.

Machines Take Over the World

Episode number: 3

Overview: From robots that paint Rembrandts to Twitterbots gone rogue, Bill and his guests explore the potential and pitfalls of artificial intelligence.

More Food, Less Hype

Episode number: 4

Overview: Bill extracts DNA from a strawberry in the lab and talks about genetically modified foods with a Monsanto executive, a professor and a farmer.

The Original Martian Invasion

Episode number: 5

Overview: Bill introduces the theory of panspermia, NASA scientists discuss the Mars 2020 mission, and Wil Wheaton and the panel ponder life on other planets.

Do Some Shots, Save the World

Episode number: 6

Overview: With help from some friends in raincoats and a room full of unemployed germs, Bill demonstrates how vaccines work and why everyone needs to get them.

Cheat Codes for Reality

Episode number: 7

Overview: Bill and his correspondents check out video game technology that's changing the world, including a game that helps surgeons sharpen their skills.

This Diet Is Bananas

Episode number: 8

Overview: What's in a calorie? Bill flambés a marshmallow in the name of science, experts weigh in on fad diets, and singing kale keeps it real about nutrition.

The Sexual Spectrum

Episode number: 9

Overview: Sex is complex! Bill explores the ever-evolving science of sexuality with help from a panel of experts and "Crazy Ex-Girlfriend" star Rachel Bloom.

Saving the World -- with Space!

Episode number: 10

Overview: Bill and the panel discuss private space travel. Mean astronaut Joel McHale answers questions, and lunar gravity gives a young basketballer a boost.

Malarkey!

Episode number: 11

Overview: Chemtrails. Crop circles. Palm readers. Bill takes aim at pseudoscience and explains how confirmation bias makes us believe things that aren't true.

Designer Babies

Episode number: 12

Overview: Bill explores advances in IVF that are helping couples have healthy babies. "Project Runway" star Tim Gunn hosts a special fashion show in the lab.

Earth's People Problem

Episode number: 13

Overview: Bill and his guests talk about tackling overpopulation by empowering women. Comedian Joanna Hausmann interviews couples about male contraception.