Learn about why life is based on carbon and not silicon, whether you should be using plastic or wood cutting boards, and how jealous feelings can help maintain friendships.

Learn about how a struck match creates fire; why "the island rule" makes some animals huge and other animals tiny; and how you can melt glass at home, with some help from Netflix reality glassblowing competition “Blown Away” host Nick Uhas.

Learn about the factors that determine how other people see you with special guest Vivian Zayas, Director of the Personality, Attachment, and Control Laboratory at Cornell University. Plus, learn about why it’s possible to ask for too much advice.

You can reduce the need for nodding off after dinner with a few simple steps.

Learn how Seabed 2030 will map the ocean floor; how our cells make soap; and how crows understand the concept of zero.

Learn about how scientists are predicting viral content by measuring people’s brain activity; how Tuvan throat singers are able to produce two notes at once; and how effective facemasks are in preventing the spread of the coronavirus.

How much of communication really is nonverbal? Why is darkness faster than the speed of light? How can you tell if you’re burned out — and how do you recover?

These insects emit a glow a yellow-green hue.

Author Priya Parker explains how to fix the biggest mistakes you’re making in your virtual gatherings. Plus: learn about how language can affect the amount of pain a bilingual person experiences; and why the world’s largest waterfall probably isn’t what you think it is.

Learn how atomic clocks and how GPS clocks work, with help from the engineer who made GPS clocks possible: Hugo Fruehauf. But first, you’ll learn about how Harvard researchers finally figured out why stress can turn your hair gray.

Daddy longlegs are one of the most venomous critters out there.

Learn about why the sunlight you feel might be 50 million years old; learn about the Undiagnosed Diseases Network that has diagnosed hundreds of people with previously undiagnosable diseases; and the closest thing scientists have found to a “universal word.”

Learn about why you make decisions using less information than you think; why your appendix actually serves a purpose; and the best ways to overcome a challenge, according to science.

Learn about how our sun is different from similar stars; how deep sleep literally cleans your brain; and the psychology behind why some psychopaths are serial killers, while others are CEOs.

Bill Nye explains why science isn’t just a body of knowledge — it’s a process. Plus: frogs with noise-canceling lungs and why your stomach growls when you’re hungry.