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Covering everything about science and technology -- from the outer reaches of space to the tiniest microbes in our bodies -- Science Friday is your source for entertaining and educational stories and activities. Each week, host Ira Flatow interviews scientists and inventors like Sylvia Earle, Elon Musk, Neil deGrasse Tyson, and more.
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737: The ‘Asteroid Hunter’ Leading The OSIRIS-REx Mission
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19:44
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Ever since we learned that an asteroid slammed into Earth, wiped out the dinosaurs, and changed the course of life on this planet, scientists have wondered if it could happen again. It turns out there is an asteroid, called Bennu, that has a very small chance of colliding with our planet in the year 2182. But beyond that, Bennu could hold informati…
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The ‘Asteroid Hunter’ Leading The OSIRIS-REx Mission
18:44
18:44
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18:44
Ever since we learned that an asteroid slammed into Earth, wiped out the dinosaurs, and changed the course of life on this planet, scientists have wondered if it could happen again. It turns out there is an asteroid, called Bennu, that has a very small chance of colliding with our planet in the year 2182. But beyond that, Bennu could hold informati…
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736: Swimming Sea Lions Teach Engineers About Fluid Dynamics
18:31
18:31
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18:31
The next time you go to the zoo, take a few minutes by the sea lion habitat to watch the way they swim. While most high-performance swimmers use powerful kicks from hind appendages to power through the water, sea lions instead use their front flippers, moving with a pulling motion. With their propulsion source close to their center of gravity and t…
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Swimming Sea Lions Teach Engineers About Fluid Dynamics
17:35
17:35
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17:35
The next time you go to the zoo, take a few minutes by the sea lion habitat to watch the way they swim. While most high-performance swimmers use powerful kicks from hind appendages to power through the water, sea lions instead use their front flippers, moving with a pulling motion. With their propulsion source close to their center of gravity and t…
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735: Botanical Rescue Centers Take In Illegally Trafficked Plants
18:27
18:27
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18:27
There’s a thriving black market to buy and sell endangered plants, and the Department of Agriculture and U.S. Fish and Wildlife Service monitor endangered species that are brought into the United States illegally. When they are discovered, the plants’ home country has 30 days to accept them. If they aren’t claimed, they get rescued. Then where do t…
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Botanical Rescue Centers Take In Illegally Trafficked Plants
17:31
17:31
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17:31
There’s a thriving black market to buy and sell endangered plants, and the Department of Agriculture and U.S. Fish and Wildlife Service monitor endangered species that are brought into the United States illegally. When they are discovered, the plants’ home country has 30 days to accept them. If they aren’t claimed, they get rescued. Then where do t…
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2023 Was Hottest Year On Record | The NASA Satellite Studying Plankton
24:44
24:44
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The World Meteorological Organization’s report confirms last year had the highest temperatures on record and predicts an even hotter 2024. Also, NASA’s new PACE satellite will study how these tiny creatures could affect Earth’s climate, and how aerosols influence air quality. UN Report Confirms 2023 Was Hottest Year On Record A new report from the …
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734: 2023 Was Hottest Year On Record | The NASA Satellite Studying Plankton
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25:40
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25:40
The World Meteorological Organization’s report confirms last year had the highest temperatures on record and predicts an even hotter 2024. Also, NASA’s new PACE satellite will study how these tiny creatures could affect Earth’s climate, and how aerosols influence air quality. UN Report Confirms 2023 Was Hottest Year On Record A new report from the …
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A Strange-Looking Fish, Frozen In Time
17:39
17:39
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17:39
The term “living fossil” has been applied to any number of animals, from sharks to turtles to the coelacanth. It’s the idea that those animals look very much the same way their species may have looked millions of years ago, with limited evolutionary change over that time. After analyzing the genomes of many different species on that “living fossil”…
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731: A Strange-Looking Fish, Frozen In Time
18:39
18:39
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18:39
The term “living fossil” has been applied to any number of animals, from sharks to turtles to the coelacanth. It’s the idea that those animals look very much the same way their species may have looked millions of years ago, with limited evolutionary change over that time. After analyzing the genomes of many different species on that “living fossil”…
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What We Know After 4 Years Of COVID-19
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18:15
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18:15
Four years ago this week, the world as we know it changed. Schools shut down, offices shuttered, and we hunkered down at home with our Purell and canned foods, trying to stay safe from a novel, deadly coronavirus. Back then most of us couldn’t fathom just how long the pandemic would stretch on. And now four years later, some 1.2 million people have…
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732: What We Know After 4 Years Of COVID-19
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19:10
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19:10
Four years ago this week, the world as we know it changed. Schools shut down, offices shuttered, and we hunkered down at home with our Purell and canned foods, trying to stay safe from a novel, deadly coronavirus. Back then most of us couldn’t fathom just how long the pandemic would stretch on. And now four years later, some 1.2 million people have…
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Science Unlocks The Power Of Flavor In ‘Flavorama’
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17:30
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17:30
Think about the best meal you’ve ever eaten: Maybe it was in a restaurant in a far-off city, or perhaps it was a home-cooked meal made by someone you love. No matter where or what it was, odds are what made it so memorable was the flavor. Flavor is arguably the most important part of a meal. If the flavor of something is off, or undetectable, it ca…
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733: Science Unlocks The Power Of Flavor In ‘Flavorama’
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18:30
Think about the best meal you’ve ever eaten: Maybe it was in a restaurant in a far-off city, or perhaps it was a home-cooked meal made by someone you love. No matter where or what it was, odds are what made it so memorable was the flavor. Flavor is arguably the most important part of a meal. If the flavor of something is off, or undetectable, it ca…
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729: Abortion-Restrictive States Leave Ob-Gyns With Tough Choices
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19:22
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19:22
Roe v. Wade was overturned almost two years ago, and a lot has changed in terms of abortion choices in the United States. Some states have effectively banned abortion, while others have such confusing laws that it’s difficult for the people who live there to know what their reproductive rights are. The post-Dobbs landscape hasn’t just affected the …
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Abortion-Restrictive States Leave Ob-Gyns With Tough Choices
18:22
18:22
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18:22
Roe v. Wade was overturned almost two years ago, and a lot has changed in terms of abortion choices in the United States. Some states have effectively banned abortion, while others have such confusing laws that it’s difficult for the people who live there to know what their reproductive rights are. The post-Dobbs landscape hasn’t just affected the …
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Nasal Rinsing Safely | How Your Brain Constructs Your Mental Health
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A recent study looked into life-threatening Acanthamoeba infections, and a few deaths, linked to the use of tap water with devices like neti pots. And, in ‘The Balanced Brain,’ Dr. Camilla Nord explores the neuroscience behind mental health, and how our brains deal with life’s challenges. Scientists Warn Against Nasal Rinsing With Unboiled Tap Wate…
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730: Nasal Rising Safely | How Your Brain Constructs Your Mental Health
25:40
25:40
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25:40
A recent study looked into life-threatening Acanthamoeba infections, and a few deaths, linked to the use of tap water with devices like neti pots. And, in ‘The Balanced Brain,’ Dr. Camilla Nord explores the neuroscience behind mental health, and how our brains deal with life’s challenges. Scientists Warn Against Nasal Rinsing With Unboiled Tap Wate…
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A New Book Puts ‘Math in Drag’
18:12
18:12
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It’s a common refrain from elementary school to adulthood: “I’m bad at math.” It’s a hard subject for a lot of people, and it has a reputation for being—let’s face it—boring. Math isn’t taught in a flashy way in schools, and its emphasis on memorization for key concepts like multiplication tables and equations can discourage students. It’s not hard…
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726: A New Book Puts ‘Math in Drag’
19:11
19:11
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19:11
It’s a common refrain from elementary school to adulthood: “I’m bad at math.” It’s a hard subject for a lot of people, and it has a reputation for being—let’s face it—boring. Math isn’t taught in a flashy way in schools, and its emphasis on memorization for key concepts like multiplication tables and equations can discourage students. It’s not hard…
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1
With This Rare Disorder, No Amount Of Sleep Is Enough
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16:37
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16:37
Humans need sufficient sleep to function. The conventional wisdom is that we need around 8 hours each night to be at peak performance. But for people with idiopathic hypersomnia, or IH, no amount of sleep can shake a profound feeling of sleepiness. Some can sleep for over 24 hours, despite using stimulants and multiple alarm clocks. Others fall asl…
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725: With This Rare Disorder, No Amount Of Sleep Is Enough
17:37
17:37
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17:37
Humans need sufficient sleep to function. The conventional wisdom is that we need around 8 hours each night to be at peak performance. But for people with idiopathic hypersomnia, or IH, no amount of sleep can shake a profound feeling of sleepiness. Some can sleep for over 24 hours, despite using stimulants and multiple alarm clocks. Others fall asl…
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How Election Science Can Support Democracy | The Genetic Roots Of Antibiotic Resistance
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18:44
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18:44
How Election Science Can Support Democracy This week, the election season shifted into full gear with the Super Tuesday slate of primaries. But as the ballot options become more cemented, it’s not just pollsters and campaign operatives who are preparing for the elections—scientists are too. The Union of Concerned Scientists has established what it …
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724: How Election Science Can Support Democracy | The Genetic Roots Of Antibiotic Resistance
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19:43
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19:43
How Election Science Can Support Democracy This week, the election season shifted into full gear with the Super Tuesday slate of primaries. But as the ballot options become more cemented, it’s not just pollsters and campaign operatives who are preparing for the elections—scientists are too. The Union of Concerned Scientists has established what it …
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728: Triple Feature: Dune, Mars, And An Alien On Earth
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32:11
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Could A Planet Like Arrakis From ‘Dune’ Exist? “Dune: Part II” is one of the year’s most highly anticipated films, and it picks up where the first film left off: with Paul Atreides escaping into the desert on the planet Arrakis. It’s a scorching-hot world that’s covered in dunes, and home to giant, deadly sandworms. Obviously “Dune” and its setting…
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Triple Feature: Dune, Mars, And An Alien On Earth
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30:41
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30:41
Could A Planet Like Arrakis From ‘Dune’ Exist? “Dune: Part II” is one of the year’s most highly anticipated films, and it picks up where the first film left off: with Paul Atreides escaping into the desert on the planet Arrakis. It’s a scorching-hot world that’s covered in dunes, and home to giant, deadly sandworms. Obviously “Dune” and its setting…
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