Learn about why popular opinion might not be as popular as you thought; a new analysis that’s debunked the blood type diet; and a pool of water in Kidd Creek Mine in Timmins, Ontario, Canada, that’s 2 billion years old.

Learn about an artificial sun that’s hotter than our actual sun; whether math really is a universal language; and what words like “fresh” really tell you about how fancy your food is.

Learn about what's going on with the new COVID-19 variants — and whether you should worry about them — with Dr. Syra Madad, nationally recognized epidemiologist and the senior director of the pathogens program at NYC Health and Hospitals. Then, learn about a new theory on how our planets formed.

Learn about how clocks and lightbulbs changed human health, with author and materials scientist Ainissa Ramirez. Plus: learn about that time a bunch of birds became milk bottle thieves and whether you should put one or two spaces after a period.

Learn about how sleep may have evolved before the brain; why airports keep birds of prey on staff; and what would happen if you stopped time.

What gets you curious? Virtual experiences, celestial bodies, water worlds or maybe just the tiniest mysteries inside your brain? The endlessly curious and curiously funny, Gillian Jacobs (Community, Netflix's LOVE) and Diona Reasonover (NCIS), step off set to go on tangents with real-life astronauts, astrophysicists, science artists, mathematician-types and other really smart people that investigate what seems impossible.

Learn about how you can de-clutter your life with the Swedish concept of döstädning, or “death cleaning.” Then, learn about how Alfred Russel Wallace, the “other” scientist who discovered natural selection.

Learn about how the coronavirus pandemic may have changed Americans’ attitudes about the poor; how you can relieve stress by learning something new; and a trick for setting goals to help you achieve what you want.

Learn about how experiencing “flow” could help your mental health during quarantine; why airplane windows are round; and whether flies experience time more slowly than we do.

Learn about why Wolf-Rayet stars are the brightest stars in the sky; why immune cells in your brain may have started out in your gut; and the history of why we can thank Grace Hopper for calling computer glitches “bugs.”

Learn about how scientists just measured the quickest event ever recorded; how tiny remoras (suckerfish) stay stuck to fast-moving whales; and why being too busy could be killing your creativity.

Learn about why you shouldn’t add oil to your pasta water; a simple way to help kids think better; and why your dog’s paws smell like corn chips.

Learn about why you can have an emotional reaction to music even when it’s not being played; how people have been performing brain surgery for thousands of years; and why some bathroom light switches are outside the room.

Learn about how disgusting sights literally turn your stomach; and why tattoos are permanent. Then, play along at home as we test your podcast knowledge in this month’s edition of the Curiosity Challenge trivia game.

Learn about the benefits of laughter yoga with the founder of the laughter club movement, Dr. Madan Kataria. You’ll also learn about a major breakthrough in the way scientists are searching for dark matter.