15 Podcasts That Will Make You Feel Smarter

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It's easy to feel overwhelmed by all the podcast options out there, but narrowing down your choices to the titles that will teach you something while you listen is a good place to start. If you're interested in learning more about philosophy, science, linguistics, or history, here are podcasts to add to your queue.

1. THE HABITAT

The Habitat is the closest you can get to listening to a podcast recorded on Mars. At the start of the series, five strangers enter a dome in a remote part of Hawaii meant to simulate a future Mars habitat. Every part of their lives over the next year, from the food they eat to the spacesuits they wear when they step outside, is designed to mimic the conditions astronauts will face if they ever reach the red planet. The experiment was a way for NASA to test plans for a manned mission to Mars without leaving Earth. The podcast, which is produced by Gimlet media and hosted by science writer Lynn Levy, ends up unfolding like a season of the Real World with a science fiction twist.

2. STUFF YOU SHOULD KNOW

Can’t pick a topic to educate yourself on? Stuff You Should Know from How Stuff Works is the podcast for you. In past episodes, hosts Chuck Bryant and Josh Clark (both writers at How Stuff Works) have discussed narwhals, Frida Kahlo, LSD, Pompeii, hoarding, and Ponzi schemes. And with three episodes released a week, you won’t go long without learning about a new subject.

3. THE ALLUSIONIST

Language nerds will find a kindred spirit in Helen Zaltzman. In each episode of her Radiotopia podcast The Allusionist, the former student of Latin, French, and Old English guides listeners through the exciting world of linguistics. Past topics include swearing, small talk, and the differences between British and American English.

4. PHILOSOPHIZE THIS!

Listening to all of Philosophize This! is cheaper than taking a philosophy class—and likely more entertaining. In each episode, host Stephen West covers different thinkers and ideas from philosophy history in an approachable and informative way. The show proceeds in chronological order, starting with the pre-Socratic era and leading up most recently to Jacques Derrida.

5. MORE PERFECT

In 2016, Radiolab, one of the most popular and well-established educational podcasts out there, launched a show called More Perfect. Led by Radiolab host Jad Abumrad, each episode visits a different Supreme Court case or event that helped shape the highest court in the land. Because of that, the podcast ends up being about a lot more than just the Supreme Court, exploring topics like police brutality, gender equality, and free speech online.

6. SLOW BURN

The Watergate scandal was such a important chapter in American history that it has its own suffix—but when asked to summarize the events, many people may draw a blank. Slow Burn, a podcast from Slate, gives listeners a refresher. In eight episodes, host Leon Neyfakh tells the story of Nixon’s demise as it unfolded, all while asking whether or not citizens would be able to recognize a Watergate-sized scandal if it happened today.

7. LETTERS FROM WAR

Instead of using a broad scope to examine World War II, the Washington Post podcast Letters From War focuses on hundreds of letters exchanged by four brothers fighting in the Pacific during the period. Living U.S. military veterans tell the siblings' story while reflecting on their own experiences with war.

8. LEVAR BURTON READS

Just because you’re a grown-up doesn’t mean you have to miss out on the soothing sound of LeVar Burton’s voice reading to you. The former host of Reading Rainbow now hosts LeVar Burton Reads, a podcast from Stitcher aimed at adults. In each episode, he picks a different piece of short fiction to narrate: Just settle into a comfortable spot and listen to him tell stories by authors like Haruki Murakami, Octavia Butler, and Ursula K. Le Guin.

9. BRAINS ON!

Brains On! is an educational podcast for young audiences, but adults have something to gain from listening as well. Every week, host Molly Bloom is joined by a new kid co-host who helps her explore a different topic. Tune in for answers to questions like "What makes paint stick?" and "How do animals breathe underwater?"

10. SCIENCE VS

There’s a lot of misinformation out there; if you’re determined to sort out fact from fiction, it can be hard to know where to start. The team of “friendly fact checkers” at the Science Vs podcast from Gimlet is here to help. GMOs, meditation, birth control, Bigfoot—these are just a few of the topics that are touched upon in the weekly show. The goal of each episode is to replace any preconceived notions you have with hard science.

11. FLASH FORWARD

No one knows for sure what the future holds, but Flash Forward lays out the more interesting possibilities. Some of the potential futures that host and producer Rose Eveleth explores are more probable than others (a future where no one knows which news sources to trust isn’t hard to imagine; one where space pirates drag a second moon into orbit perhaps is), but each one is built on real science.

12. HIDDEN BRAIN

What motivates the everyday choices we make? That’s the question Shankar Vedantam tries to answer on the NPR podcast Hidden Brain. The show looks at how various unconscious patterns shape our lives, like what we wear and who we choose to spend time with.

13. PART-TIME GENIUS

The fact that it’s hosted by Mental Floss founders Will Pearson and Mangesh Hattikudur isn’t the only reason we love Part-Time Genius. The podcast from How Stuff Works wades into topics you didn’t know you were curious about, like the origins of Nickelodeon and the hidden secrets at the Vatican. Each episode will leave you feeling educated and entertained at the same time.

14. ASTRONOMY CAST

It’s a big universe out there—if you want to learn as much about it as possible, start with Astronomy Cast. Fraser Cain, publisher of the popular site Universe Today, and Dr. Pamela L. Gay, director of the virtual research facility CosmoQuest, host the podcast. They cover a wide range of topics, from the animals we’ve sent to orbit to the color of the universe.

15. SCIENCE OF HAPPINESS

The Science of Happiness podcast from PRI is here to improve your life, one 20-minute episode at a time. Science has proven that adopting certain practices, like mindfulness and gratitude, can make us happier—as does letting go of less healthy patterns like grudges and stressful thinking. With award-winning professor Dacher Keltner as your host, you can learn how to incorporate these science-backed strategies for happiness into your own life.

6 Strange Maritime Mysteries

Neville Mountford-Hoare/iStock via Getty Images
Neville Mountford-Hoare/iStock via Getty Images

The oceans cover over 70 percent of our planet, so it's little wonder that their seemingly impenetrable depths have provided a series of fascinating mysteries, from missing ships to eerie monsters. Below are six mysteries of the deep—some of which scientists think they've at least partly explained, while others remain truly puzzling.

  1. The Mary Celeste

On December 5, 1872, the crew of the British ship the Dei Gratia spotted a vessel bobbing about 400 miles off the coast of the Azores. They approached the Mary Celeste to offer help, but after boarding the ship were shocked to find it completely unmanned. The crew had disappeared without a trace, their belongings still stowed in their quarters, six months' worth of food and drink untouched, and the valuable cargo of industrial alcohol still mostly in place. The only clues were three and a half feet of water in the hold, a missing lifeboat, and a dismantled pump. It was the beginning of an enduring mystery concerning what happened to the crew, and why they abandoned a seemingly sea-worthy vessel.

Numerous theories have been suggested, including by crime writer Arthur Conan Doyle, who penned a short story in 1884 suggesting the crew had fallen victim to an ex-slave intent on revenge. A more recent theory has pointed the finger at rough seas and the broken pump, arguing they forced the captain to issue an order to abandon ship. Since the missing crew have never been traced, it seems unlikely that there will ever be a satisfying answer to the enigma.

  1. The Yonaguni Monument

An underwater area known as the Twin Megaliths at the Yonaguni Monument
An area known as the Twin Megaliths at the Yonaguni Monument
Vincent Lou, Wikimedia // CC BY 2.0

In 1986, a diver looking for a good spot to watch hammerhead sharks off the coast of the Ryukyu Islands in Japan came across an extraordinary underwater landscape. The area reportedly looked like an ancient submerged village, with steps, holes, and triangles seemingly carved into the rocks. Ever since it was first discovered, controversy has surrounded the site that's become known as the Yonaguni Monument, with some researchers—such as marine geologist Masaaki Kimura—arguing it is a clearly manmade environment, perhaps a city thousands of years old and sunk in one of the earthquakes that plagues the region. Others believe it's a natural geological phenomenon reflecting the stratigraphy (layers) of sandstone in an area with tectonic activity. The area is open to scuba divers, so the really curious can strap on air tanks and decide for themselves.

  1. The Bermuda Triangle

The Bermuda Triangle has probably spawned more wild theories, column inches, and online discussion than any other ocean mystery—more than 50 ships and 20 aircraft are said to have vanished there. Although the triangle has never officially been defined, by some accounts it covers at least 500,000 square miles and lies between Bermuda, Florida, and Puerto Rico.

The mystery first caught the public imagination in December 1945 when Flight 19, consisting of five U.S. Navy TBM Avenger torpedo bombers and their 14 crewmembers, were lost without a trace during a routine training operation in the area. Interest was further piqued when it was later reported that one of the search-and-rescue planes dispatched to find the missing team had also disappeared. Articles and books such as Charles Berlitz’s The Bermuda Triangle, first published in 1974 and having since sold over 20 million copies in 30 languages, have served to keep the mystery alive, providing potential theories both natural and supernatural. Scientists—and world-renowned insurers Lloyd’s of London—have attempted to debunk the myth of the Bermuda Triangle, offering evidence that the rate of disappearance in the vast and busy triangle is no higher than other comparable shipping lanes, but such is the power of a good story that this is one story that seems likely to continue to fascinate.

  1. The Kraken

A model of a giant squid on display at the Natural History Museum in London in 1907
A model of a giant squid on display at the Natural History Museum in London in 1907
Topical Press Agency/Getty Images

For hundreds of years, sailors told tales of an enormous sea creature with huge tentacles known as the Kraken. Stories around the mythical kraken first started appearing in Scandinavia in the 12th century, and in 1555 Swedish cartographer Olaus Magnus provided an account of a sea creature with “sharp and long Horns round about, like a Tree root up by the Roots: They are ten or twelve cubits long, very black, and with huge eyes.” The stories persisted, often mentioning a creature so large it resembled an island. In his 1755 book The Natural History of Norway, Danish historian Erik Ludvigsen Pontoppidan described the kraken as “incontestably the largest Sea monster in the world."

Scientists have proposed that these stories might derive from sightings of giant squid (Architeuthis dux), although evidence for an even larger, yet extremely elusive, colossal squid (Mesonychoteuthis hamiltoni) has also come to light. The colossal squid is found in the deepest part of the Southern Ocean surrounding Antarctica, and is thought to be up to 46 feet long and 1100 pounds. The problem is that the animal is so rare very few specimens have been found intact, and no live specimen has ever been observed, which means that estimating its exact size is difficult. Researchers have also noticed that sperm whales have been observed with large scars, and have suggested that these could be the result of violent encounters with the colossal squid, which is known to have sharp rotating hooks on the ends of their tentacles.

  1. The Treasure of the Merchant Royal

The remains of the Merchant Royal are known as one of the richest shipwrecks ever. The ship set sail from the New World in 1641 laden with 100,000 pounds of gold, 400 Mexican silver bars, and thousands of precious gems—in total, a haul thought to be worth $1.3 billion today. The ship got caught in a storm and was thought to have gone down somewhere off the coast of Cornwall, England. The lost wreck became known as the “el Dorado of the seas” due to the enormous value of its cargo, and over the years numerous treasure hunters have searched fruitlessly for its final resting place, which remains undiscovered. In 2019 fishermen snagged what is thought to be the anchor from the Merchant Royal, but to date the dangerous conditions and extreme depths at which the wreck is thought to lie have meant it has remained unclaimed.

  1. Attack of the Sea Foam

In December 2011, residents of Cleveleys, England, awoke to what appeared to be a soft blanket of snow. But as locals ventured out into the streets it soon became clear that this was no snowstorm, but instead something far more puzzling. Trees, cars, roads, and houses were all wrapped in a thick, white layer of foam. The Environment Agency were quickly deployed to take samples of the sea foam, since residents were understandably concerned as to the origin of the strange, gloopy substance, fearing it might be caused by pollutants.

The dramatic images of the foam-soaked town soon had journalists flocking to the region to investigate the phenomena, but as quickly as it appeared the foam disappeared, leaving behind only a salty residue. Scientists analyzing the foam confirmed it was not caused by detergents, and instead suspected that it was caused by a rare combination of decomposing algae out at sea and strong winds, which whipped up the viscous foam and blew it into land. The phenomena has apparently occurred at other times before and since, and researchers are now working to try and understand the exceptional conditions that cause it to form so that residents can be warned when another thick blanket is set to descend.

Bonus: The Bloop—Mystery Solved

Over the years, the oceans have produced a number of eerie and often unexplained sounds. In 1997, researchers from NOAA listening for underwater volcanic activity using hydrophones (underwater microphones) noticed an extremely loud, powerful series of noises in the Pacific Ocean. The unusual din excited researchers, who soon named it “The Bloop” in reference to its unique sound.

Theories abounded as to the origin of the bloop—secret military facility, reverberations from a ship’s engine, or an enormous sea creature. The most fanciful suggestion stem from H. P. Lovecraft fans who noticed that the noise came from an area off South America where the sci-fi writer’s fictional sunken city of R’lyeh was supposed to be. They proposed that the bloop might have originated from Lovecraft’s “dead but dreaming” sea creature, Cthulhu. In 2005, however, scientists found that the mysterious sound was in fact the noise made by an icequake—or an iceberg shearing off from a glacier.

10 Clever Stranger Things Season 3 Easter Eggs You Might Have Missed

Dacre Montgomery as Billy Hargrove in Stranger Things.
Dacre Montgomery as Billy Hargrove in Stranger Things.
Netflix

Warning: This story includes spoilers for all aired episodes of Stranger Things.

After waiting nearly two years for the latest season of Stranger Things, most fans couldn’t help but binge all eight episodes in a row. But now that we know how it all went down, with Billy Hargrove being taken over by the Mind Flayer and Jim Hopper’s tragic (maybe) death, it's time for us to reprocess the season ... and rewatch it all over again.

While giving the season a second watch, keep an eye out for all the clever Easter eggs sprinkled into each episode, including several references to classic 1980s movies, earlier Stranger Things episodes, and unexpected connections we had never imagined were possible.

1. Peter Gabriel could be hinting at a major plot twist.

Arguably the most heartbreaking scene in Stranger Things history came in the final episode of season 3, “The Battle of Starcourt,” when Eleven reads the scrapped letter Hopper wrote for her and Mike. Viewers at home cried along with Millie Bobby Brown's character as she prepared for life without her “dad,” but one element in the scene might be a hint that Hopper isn’t really dead.

The song that starts playing just as Eleven finishes up reading the letter is Peter Gabriel’s cover of David Bowie’s “Heroes,” which is the same rendition of the song that played in the season 1 episode “Holly, Jolly,” when it was believed that Will had been killed. Of course, he turned out to be very much alive, meaning the same could (hopefully) happen for Hopper.

2. Jim Hopper is channeling Martin Brody.

Stranger Things has never shied away from paying homage to classic movies. And Redditor LucasLeArtist noticed that one of Hopper's season 3 lines was a direct quote from Jaws. When Hopper is about to leave Enzo’s after Joyce stands him up, he’s told he can’t take the alcohol with him, to which he drunkenly responds, “I can do anything I want, I’m chief of police.” This mimics a scene in Jaws where Chief Brody said the same line before taking a swig of his drink.

3. Murray Bauman’s phone number is real.

Brett Gelman, Natalia Dyer, and Charlie Heaton in Stranger Things
Netflix

One of the more eccentric characters in Stranger Things, Murray Bauman, turned out to be extremely helpful this season, as he served as translator for Hopper and the Russian scientist Alexei. In one scene, Murray’s phone number is shown—and it turns out that it's a working phone number ... which does indeed belong to Murray. As CNET reported, when you dial 618-625-8313, you get a lengthy, and hilarious, answering machine message from the character.

4. Billy Hargrove’s nod to Stand By Me.

While Billy Hargrove surprisingly turned into a character you felt sorry for by the end of season 3, his scenes in the first episode proved he was still just as much of a bully as he was in season 2. One example of this is when he’s lifeguarding and yells at a kid for running by the pool. Billy calls him a “lard-ass,” which doesn’t just remind you of how mean of a person he is, but is also a borrowed line from Rob Reiner's classic 1986 film Stand By Me. As IndieWire pointed out, that particular insult was famously used in the movie during the scene in which Gordie tells his friends a memorable story about a pie-eating contest.

5. Dustin Henderson is crushing on Phoebe Cates.

When Dustin returns to Hawkins from camp, he shocks everyone with the reveal that he now has a girlfriend. Of course, the first reaction from his friends (Steve included) is that she isn’t real. Dustin keeps the story going, however, telling everyone that her name is Suzy and that she's better looking than Phoebe Cates—as in the actress best known for her role in 1982’s Fast Times at Ridgemont High. In the season’s final episode, we learn that Suzy is indeed real. And when Robin is trying to get Steve a job at the video store, he falls into a cardboard cutout of Cates as Linda Barrett (her Fast Times character) before stopping to admire it.

6. Dustin and Robin recreated a scene from 1992's Sneakers.

A Twitter user pointed out an unexpected callback to the 1992 River Phoenix film Sneakers, as Dustin and Robin recreate one of its scenes when getting the “complete blueprints” of the Starcourt Mall. It's almost word-for-word, with the only difference being that in Sneakers, they’re looking at the Playtronics Corporate Headquarters.

7. Eleven visits the house from A Nightmare on Elm Street.

During Eleven’s scariest venture into the Void this season, she tries to find the missing lifeguard Heather. As she approaches Heather's home, the red door is reminiscent of the house that belonged to Nancy Thompson’s family in 1984’s A Nightmare on Elm Street. A Twitter user claimed the number on both doors was the same, but Stranger Things changed it by one number, as Heather lives at 1438. We’re not sure if they had to change it because of legal matters or if was just a coincidence—but in a show full of horror movie references, the similarity would seem a little too coincidental.

8. Steve Harrington can't keep his Michael J. Fox projects straight.

When Dustin, Erica, Steve, and Robin manage to escape the Russians in the seventh episode, “The Bite,” they end up in the movie theater at the mall, which is showing Back to the Future (1985). Steve and Robin soon leave, and while very high—and trying to analyze what they just watched—Robin hilariously says she’s pretty sure “that mom was trying to bang her son,” referring to Marty McFly and his mom, Lorraine. A confused Steve replies, “Wait, wait, the hot chick was Alex P. Keaton’s mom?” Alex P. Keaton, of course, was the name of Michael J. Fox’s character in the hit NBC series Family Ties, not Back to the Future.

9. "Weird" Al Yankovic's Reality Bites link.

In episode 2, “The Mall Rats,” Winona Ryder's Joyce ends up ditching Hopper to go find the kids’ science teacher Mr. Clarke, only to find him jamming out to "Weird" Al Yankovic’s parody song “My Bologna.” A Twitter user pointed out that this could be a nod to 1994’s Reality Bites, which features a memorable scene of Ryder dancing to the original song, “My Sharona.” Ethan Hawke is also in the scene, who is the real-life dad of Maya Hawke, who plays Robin in Stranger Things.

10. The post-credits scene that hints at Hopper's survival.

Perhaps the most important detail in the entire season comes during the post-credits scene, which includes another major hint that Hopper is still alive. Viewers are taken to the Russian base, where prisoners are being fed to the Demogorgon. One soldier then says, “No, not the American,” before moving on to the next person held captive. Fans are convinced the American would have to be Hopper, although there are plenty of theories floating around about other Americans that character could be. Now we’ll just have to wait until season 4, which has not been announced yet, to know who it is for sure.

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