Unexplainable

Unexplainable takes listeners right up to the edge of what we know … and then keeps on going. Host Noam Hassenfeld and an all-star team of reporters — Byrd Pinkerton, Meradith Hoddinott, and Mandy Nguyen — tackle scientific mysteries, unanswered questions, and everything we learn by diving into the unknown. New episodes drop every Wednesday.

Science
Life Sciences
Natural Sciences
101
What did dinosaurs sound like?
They probably didn’t roar like lions.
36 min
102
Can ovaries make new eggs?
There's an old story scientists tell about human ovaries: that they are ticking clocks that only lose eggs, never gain them.
26 min
103
Will the eel (slim, shady) please have sex?
Where eels come from is a surprisingly difficult question to answer, in large part because scientists have never actually seen them reproduce in the wild.
44 min
104
Yawn baby yawn
People yawn when they’re bored, right?
34 min
105
What’s the James Webb telescope searching for?
A lava planet, life on other worlds, the very first starlight in the universe — the most powerful space telescope ever built is ready to reveal many mysteries of the cosmos.
46 min
106
Vitamin X
Millions of Americans take dietary supplements — everything from vitamins and minerals to weight loss pills and probiotics.
31 min
107
Lost Worlds: What killed Venus?
Venus is the hottest, scariest place in the solar system, but billions of years ago it may have been a lot like Earth, complete with an ocean of water.
25 min
108
Lost Worlds: Life on Mars?
Mars was once a very different planet, with rivers, lakes, and — potentially — life.
27 min
109
Lost Worlds: Why do we have a moon?
In all our searching of the universe, we’ve never seen another moon like ours.
24 min
110
Lost Worlds: Aliens from Earth?
Was there a technologically advanced species living on Earth long before humans?
24 min
111
Dropping like flies
Insect populations are shrinking all over the world
24 min
112
Is telepathy real?
A groundbreaking study claims to have found a way for a fully paralyzed person to communicate entirely via thought. Today, Explained breaks down the science and asks: Is it too good to be true?
23 min
113
Why do we dream?
Dreams are weird, but can they be a scientific tool?
20 min
114
Should I take a DNA ancestry test?
What are the scientific, family, and privacy implications?
25 min
115
My octopus friend?
Octopuses are largely solitary animals, but there have been rare times — notably in the movie My Octopus Teacher — where they seem to have become comfortable around humans
22 min
116
Glow in the dark ocean
Most deep-water creatures are bioluminescent. Marine biologist Edie Widder has spent the last 40 years trying to figure out why.
28 min
117
When reality broke
In the 1920s, the scientist Werner Heisenberg came up with a wild idea that broke reality as Western science knew it.
23 min
118
Making Sense: The sixth sense
Why stop at five senses?
24 min
119
Making Sense: Sight unseen
Close your eyes and try to imagine an apple. Can you see anything?
22 min
120
Making Sense: The Umami Mama
For thousands of years, there have been four basic tastes recognized across cultures.
34 min
121
Making Sense: No one nose
26 min
122
Making Sense: The healing power of touch
Doctors can save the lives of premature infants, but the process is often painful. Luckily, a solution might be as simple as a parent’s loving touch.
25 min
123
Making Sense: How sound becomes hearing
In the same way optical illusions trick our eyes, audio illusions can trick our ears.
37 min
124
The methane hunters
Methane traps more than 80 times as much heat as CO2 over the short term.
20 min
125
What is love?
Can science help us predict whether a relationship will succeed? Or is it all just chaos?
30 min