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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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854: An Asteroid Impact, Spotted In Advance | Extreme Heat Is Making Learning More Difficult
25:22
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ESA officials said it was only the ninth time an asteroid was spotted before reaching Earth’s atmosphere. And, as the climate changes and summer temperatures linger, educators are increasingly worried about keeping kids safe from heat exhaustion. An Asteroid Impact, Spotted In Advance On Wednesday, an asteroid named 2024 RW1 burned up in the atmosp…
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An Asteroid Impact, Spotted In Advance | Extreme Heat Is Making Learning More Difficult
25:04
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25:04
ESA officials said it was only the ninth time an asteroid was spotted before reaching Earth’s atmosphere. And, as the climate changes and summer temperatures linger, educators are increasingly worried about keeping kids safe from heat exhaustion. An Asteroid Impact, Spotted In Advance On Wednesday, an asteroid named 2024 RW1 burned up in the atmosp…
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1
Dino-Killing Asteroid Was Rich In Carbon | The Dogs Sniffing Out Spotted Lanternflies
19:44
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19:44
A new study suggests that the asteroid that killed the dinosaurs may have originated from the outer parts of the solar system. And, invasive spotted lanternflies often lay eggs on vehicles and shipped goods. Now researchers are training dogs to sniff them out before they hatch. Asteroid That Killed The Dinosaurs Was A Carbon-Rich Rock Around 66 mil…
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853: Dino-Killing Asteroid Was Rich In Carbon | The Dogs Sniffing Out Spotted Lanternflies
20:02
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20:02
A new study suggests that the asteroid that killed the dinosaurs may have originated from the outer parts of the solar system. And, invasive spotted lanternflies often lay eggs on vehicles and shipped goods. Now researchers are training dogs to sniff them out before they hatch. Asteroid That Killed The Dinosaurs Was A Carbon-Rich Rock Around 66 mil…
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1
852: Why Eels Are So Mysterious—And In Demand
17:59
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17:59
Eels have fascinated humans for thousands of years, even captivating big thinkers like Aristotle and Freud. Despite having been around for some 200 million years, eels are still rather mysterious creatures. For example, scientists still aren’t sure exactly how they spawn. But those unanswered questions haven’t stopped humans from wanting to eat the…
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Why Eels Are So Mysterious—And In Demand
17:41
17:41
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17:41
Eels have fascinated humans for thousands of years, even captivating big thinkers like Aristotle and Freud. Despite having been around for some 200 million years, eels are still rather mysterious creatures. For example, scientists still aren’t sure exactly how they spawn. But those unanswered questions haven’t stopped humans from wanting to eat the…
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1
Webb Telescope Data Point To Six ‘Rogue Worlds’
17:53
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17:53
Did you know that almost every star you see in the night sky has at least one planet orbiting it? Here’s something even wilder: There are some celestial bodies that look a lot like planets, but just float around freely in the cosmos, unattached to any particular star. They’re called rogue worlds. With data from the James Webb Space Telescope, astro…
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851: Webb Telescope Data Point To Six ‘Rogue Worlds’
18:11
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18:11
Did you know that almost every star you see in the night sky has at least one planet orbiting it? Here’s something even wilder: There are some celestial bodies that look a lot like planets, but just float around freely in the cosmos, unattached to any particular star. They’re called rogue worlds. With data from the James Webb Space Telescope, astro…
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1
Could ‘Season Creep’ Affect Human Behavior?
18:06
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18:06
You might have noticed that the seasons don’t quite behave like they used to. In some places, fall and spring seem to fly by, while winter and summer are much longer and feel more intense. This shift is known as season creep, where the timing of the seasons starts to shift. This phenomenon is mostly due to climate change creating temperature imbala…
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850: Could ‘Season Creep’ Affect Human Behavior?
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18:24
You might have noticed that the seasons don’t quite behave like they used to. In some places, fall and spring seem to fly by, while winter and summer are much longer and feel more intense. This shift is known as season creep, where the timing of the seasons starts to shift. This phenomenon is mostly due to climate change creating temperature imbala…
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1
Mosquito-Borne Diseases Are Spreading | ‘Slingshot’ And A Space Mission Gone Wrong
23:52
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23:52
Several states have reported cases of the rare but serious mosquito-borne illness eastern equine encephalitis. And, the new sci-fi movie "Slingshot," about an astronaut’s mental breakdown, prompts questions about how to prepare humans for long-term space travel. Mosquito-Borne Diseases Are Spreading As Temperatures Rise This week, a New Hampshire m…
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849: Mosquito-Borne Diseases Are Spreading | ‘Slingshot’ And A Space Mission Gone Wrong
24:10
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24:10
Several states have reported cases of the rare but serious mosquito-borne illness eastern equine encephalitis. And, the new sci-fi movie "Slingshot," about an astronaut’s mental breakdown, prompts questions about how to prepare humans for long-term space travel. Mosquito-Borne Diseases Are Spreading As Temperatures Rise This week, a New Hampshire m…
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1
848: The History Of Teeth, From Ancient Fish To Humans
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18:04
Your teeth don’t just chew your food—they connect you to the deepest of deep history on Earth. Teeth have existed, in some form, for half a billion years, making them more than 250 million years older than dinosaurs. They came before the evolution of warm bloodedness, eggs, and even limbs. From that very first set of chompers emerged a bewildering …
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The History Of Teeth, From Ancient Fish To Humans
17:46
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17:46
Your teeth don’t just chew your food—they connect you to the deepest of deep history on Earth. Teeth have existed, in some form, for half a billion years, making them more than 250 million years older than dinosaurs. They came before the evolution of warm bloodedness, eggs, and even limbs. From that very first set of chompers emerged a bewildering …
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1
Errors On Death Certificates May Be Skewing Mortality Data
18:43
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18:43
According to the Centers for Disease Control and Prevention (CDC), the maternal mortality rate in the United States is very high compared to other wealthy countries: About 22.3 maternal deaths per 100,000 live births. This is on par with China and Iran, based on UNICEF data. So why is the US maternal mortality rate so high? It may have to do with h…
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847: Errors On Death Certificates May Be Skewing Mortality Data
20:32
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20:32
According to the Centers for Disease Control and Prevention (CDC), the maternal mortality rate in the United States is very high compared to other wealthy countries: About 22.3 maternal deaths per 100,000 live births. This is on par with China and Iran, based on UNICEF data. So why is the US maternal mortality rate so high? It may have to do with h…
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1
Astronaut Cady Coleman On ‘Sharing Space’
18:34
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18:34
There’s a phenomenon known as the “overview effect,” a changed perspective some people experience after seeing the Earth from space. Retired astronaut Dr. Cady Coleman says that for her, it was a sense of home and connection. “First of all, I just don’t feel that far away,” she said. “I feel like home is bigger than we thought and I just happened t…
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1
846: Astronaut Cady Coleman On ‘Sharing Space’
18:52
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18:52
There’s a phenomenon known as the “overview effect,” a changed perspective some people experience after seeing the Earth from space. Retired astronaut Dr. Cady Coleman says that for her, it was a sense of home and connection. “First of all, I just don’t feel that far away,” she said. “I feel like home is bigger than we thought and I just happened t…
…
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1
Protecting Sequoias From Wildfire Gets Tricky | Ancient Cave Art And Human Creativity
21:27
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21:27
Sequoia National Park is largely designated as wilderness. That complicates efforts to protect its iconic trees from worsening wildfires. Also, archaeologists keep finding older and older cave art. Here’s what it could tell us about how humans evolved over time. Protecting Sequoias From Wildfire Raises Tricky Questions Sequoia National Park in Cali…
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845: Protecting Sequoias From Wildfire Gets Tricky | Ancient Cave Art And Human Creativity
21:45
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21:45
Sequoia National Park is largely designated as wilderness. That complicates efforts to protect its iconic trees from worsening wildfires. Also, archaeologists keep finding older and older cave art. Here’s what it could tell us about how humans evolved over time. Protecting Sequoias From Wildfire Raises Tricky Questions Sequoia National Park in Cali…
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1
Plastic In Human Brains | Local Anesthetics Recommended For IUD Insertion
22:45
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A new study measuring microplastics in organs of the recently deceased found that about two dozen brain samples were 0.5% plastic by weight. Also, having an IUD inserted in the uterus is extremely painful for some people. The CDC now recommends that doctors use local anesthetics. Study Finds A Staggering Amount Of Plastic In Human Brains It only ta…
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844: Plastic In Human Brains | Local Anesthetics Recommended For IUD Insertion
23:03
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23:03
A new study measuring microplastics in organs of the recently deceased found that about two dozen brain samples were 0.5% plastic by weight. Also, having an IUD inserted in the uterus is extremely painful for some people. The CDC now recommends that doctors use local anesthetics. Study Finds A Staggering Amount Of Plastic In Human Brains It only ta…
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1
Don’t Just Walk In The Woods—Touch, Smell, and Taste Them, Too
17:33
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17:33
It’s been a hot and rainy summer in many parts of the US, and it’s been hard to spend as much time in nature as many of us would like. Heat waves and unpredictable weather have sometimes made it riskier to be outside. Maybe you’ve chosen an easier hike, or doubled up on water bottles, or stayed inside when you’d much rather be outdoors with friends…
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843: Don’t Just Walk In The Woods—Touch, Smell, and Taste Them, Too
17:51
17:51
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17:51
It’s been a hot and rainy summer in many parts of the US, and it’s been hard to spend as much time in nature as many of us would like. Heat waves and unpredictable weather have sometimes made it riskier to be outside. Maybe you’ve chosen an easier hike, or doubled up on water bottles, or stayed inside when you’d much rather be outdoors with friends…
…
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![Artwork](/static/images/128pixel.png)
1
842: Are Space Elevators Really A Possibility?
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17:43
The space elevator has been a staple of science fiction for decades, from The Fountains of Paradise by Arthur C. Clarke to the Apple TV show “Foundation.” But the work and theories to make it a reality have been in development since the late 19th century. It’s a simple concept: Imagine a long cable, stretching from the Earth’s surface to a satellit…
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Are Space Elevators Really A Possibility?
17:25
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17:25
The space elevator has been a staple of science fiction for decades, from The Fountains of Paradise by Arthur C. Clarke to the Apple TV show “Foundation.” But the work and theories to make it a reality have been in development since the late 19th century. It’s a simple concept: Imagine a long cable, stretching from the Earth’s surface to a satellit…
…
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