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Science Friday

Science Friday, as heard on PRI, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow. Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well.

society & culture

All Episodes

48:34

Experimental HIV Vaccines, Lithium Mining In Oregon,...

Science Friday ·

2022/04/01

Why Another Antarctic Ice Shelf Collapsed On March 15, the Conger ice shelf, a piece of ice half the size of Rome, collapsed in eastern Antarctica. It’s the first time that side of the continent experienced a major loss of ice in the 40-year history of satellite observations. Previous collapses of shelves have until now occurred in western Antarctica. Meanwhile, researchers are reporting temperatures more than 70 degrees Fahrenheit warmer than average, while parts of the Arctic are beating averages

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49:03

Ukraine And The Energy Market, More West Nile Virus,...

Science Friday ·

2022/03/25

How Has The War In Ukraine Shaped The Global Energy Market? Russia’s war on Ukraine sent shock waves through the global energy market. The United States and the United Kingdom stopped importing Russian oil and gas, and the European Union set a target of reducing their reliance on Russian fossil fuels by two thirds. In the short term some countries may start relying more on dirty fossil fuels like coal to cushion the economic impact of the shifting energy market. However, some experts believe the

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49:09

How Vampire Bats Evolved To Drink Blood, Ethics...

Science Friday ·

2022/03/25

How Vampire Bats Evolved To Drink Blood Vampire bats subsist solely on blood: In technical terms, they’re what’s called “obligate sanguivores.” And the three species of vampire bats are the only mammals to have ever evolved this particular diet. Living on blood is hard work. Blood is a low-calorie food with a lot of water volume, and very little of it is fat or carbohydrates. To survive this lifestyle, vampire bats have made numerous physical adaptations—stretchy stomachs, tricks to deal with high

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49:27

James Webb Focused Image, Decarbonize Your Home,...

Science Friday ·

2022/03/18

The James Webb Telescope Releases Its First Focused Image This week eager astronomers got an update on the progress of the James Webb Space Telescope (JWST), which launched last December. After a long period of tweaking and alignment, all 18 mirrors of the massive orbiting scope are now in focus. In a briefing this week, Marshall Perrin, the Webb deputy telescope scientist, said that the team had achieved diffraction limited alignment of the telescope. “The images are focused as finely as the laws

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48:50

Dandelion Sensors, GoFundMe Healthcare Shortcomings,...

Science Friday ·

2022/03/18

Flower Power: Floating Sensors Inspired By Dandelions Dandelions’ white puff balls are irresistible—kids delight in blowing on them until the seeds break free, floating away. But, dandelion seeds’ ability to travel through the air is not just aesthetic. Like many other plants, they rely on the wind for seed dispersal. The traveling success of those floating dandelion seeds inspired engineers at the University of Washington to design a new ultra-light sensor. It’s solar powered and weighs just 30

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48:07

Mask Mandates Drop, International Salmon Survey, Long...

Science Friday ·

2022/03/11

As Mask Mandates Drop, COVID Cases Increase In Some Parts Of World Later this month, Hawai’i will become the 50th and final state in the U.S. to drop its indoor mask mandate, as those and other COVID-19 protections tumble down nationwide and in places like the United Kingdom and Austria. But as the winter omicron surge eases in some places, an omicron subvariant called Ba.2 is joining the viral mix. And the pandemic is far from over elsewhere. Science journalist Roxanne Khamsi reports on rising

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48:35

T. Rex Dispute, Texas Trans Healthcare, Russian Cyber...

Science Friday ·

2022/03/04

The Tyrannosaurus Rex Is Having An Identity Crisis There are few creatures, present or extinct, that hold the iconic status of the Tyrannosaurus rex. In museums and dinosaur media, this powerful, lumbering reptile often plays a starring role. But new research argues that the T. rex should really be classified into three separate species: Tyrannosaurus rex, Tyrannosaurus imperator, and Tyrannosaurus regina. This paper has been met with a wide range of reactions: some paleontologists have said this

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48:53

Lack Of Black Physicists, Solar Outages, Martian...

Science Friday ·

2022/03/04

Where Are The Black Physicists? Black scientists make up less than one percent of physics PhDs in the U.S. And since 1999, most physics departments in the country have failed to graduate more than one or two Black undergraduates. Furthermore, the share of Black students in physics is declining: If the number receiving a bachelor’s degree in physics had kept pace with the rising popularity of the major, there would be 350 Black physicists graduating every year. Instead, in 2020, that number was

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48:54

Bridge Infrastructure, Cat Ancestor Gap, Lab Mice,...

Science Friday ·

2022/02/25

Pittsburgh’s Bridge Collapse Spotlights America’s Infrastructure Woes Our modern world is made up of infrastructure: Roads, buildings, and bridges all play a big role for many people’s daily lives. If these structures do their jobs well, we don’t think much about them. That is, until infrastructure fails. Bridge collapses are especially scary, like the structural failure in Pittsburgh, Pennsylvania last month. These events are shocking, and cause people to wonder how this could be allowed to

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48:54

Eye Implant Ethics, Sled Dogs, Tranquility Sound...

Science Friday ·

2022/02/25

Paul Farmer, Global Health Leader, Dies At 62 Paul Farmer, physician and co-founder of the humanitarian medical organization Partners in Health died unexpectedly this week in Rwanda at the age of 62. Farmer was widely known for his compassion, and his conviction that all people around the world, regardless of their means, deserved access to quality medical treatments and interventions. Sarah Zhang, staff writer at The Atlantic, joins John Dankosky to remember Paul Farmer and his work around the

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49:55

Paralysis Treatment, Protein Vaccines Advantages, How...

Science Friday ·

2022/02/18

New Device Helps People With Paralysis Walk Again Spinal cord injuries are notoriously difficult to treat, especially for those who have been paralyzed for several years. Now, researchers have developed a new implant that is able to reverse paralysis in patients with complete spinal cord injuries. The device uses specially designed electrodes, which bring the brain back into communication with the patient’s lower body. The findings were recently published in the academic journal Nature

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49:52

Successful HIV Treatment, Improving Health Equity,...

Science Friday ·

2022/02/18

Third Person Cured From HIV, Thanks To Umbilical Cord Stem Cells The third person ever, and the first woman, has been cured of the HIV virus, thanks to a stem cell transplant using umbilical cord blood. While the invasive, risky bone marrow transplant process may not prove the answer for large numbers of people, the use of cord blood may open up pathways to new treatment options for a wider variety of people than the adult stem cells used to cure the two previous patients. Vox staff writer Umair

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49:21

How Grief Rewires The Brain, New Cancer Therapy,...

Science Friday ·

2022/02/11

How Grief Rewires The Brain Being a human can be a wonderful thing. We’re social creatures, craving strong bonds with family and friends. Those relationships can be the most rewarding parts of life. But having strong relationships also means the possibility of experiencing loss. Grief is one of the hardest things people go through in life. Those who have lost a loved one know the feeling of overwhelming sadness and heartache that seems to well up from the very depths of the body. To understand why

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55:51

Science Advisor Resigns, COVID Drug Treatments,...

Science Friday ·

2022/02/11

An Abrupt Departure For Biden’s Science Adviser This week, Eric Lander, the Presidential science advisor and head of the Office of Science and Technology Policy, resigned following an investigation into bullying behavior towards his subordinates. In an apology, Lander acknowledged being “disrespectful and demeaning” towards staff. Lander, a mathematician and genomics researcher, was previously the head of the Broad Institute at Harvard and MIT. Nsikan Akpan, health and science editor for WNYC Radio

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49:00

Phasing Out “Problematic” Plastics, Sticky Surface...

Science Friday ·

2022/02/04

Phasing Out “Problematic” Plastics Plastic packaging is just about impossible to avoid. Getting takeout? You’ll likely wind up with a plastic container, or cutlery. Grabbing a coffee? Plastic stirrers and straws are hard to evade. These items are tough to recycle, and most sanitation systems aren’t equipped to process them. That means they go into the trash, or worse, waterways. Last week, the U.S. Plastics Pact released a much-anticipated list of “Problematic and Unnecessary Materials” that pact

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49:16

Brain Donation, Meat And Human Evolution, Bird Song,...

Science Friday ·

2022/02/04

Date Set For International Space Station’s Burial At Sea The International Space Station was never going to last forever. And its expiration date had already been moved from 2024 to 2030. But NASA finally released the plan for what happens after the end of United States support for the orbiting research lab. In a report released this week, NASA announced the station, once decommissioned, would orbit into the ocean in 2031. More specifically, it would end at a place between New Zealand and the

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47:53

Fake COVID Testing Sites, Cannabis And Exercise,...

Science Friday ·

2022/01/28

Beware Of Fake Pop-Up COVID Sites In recent months, mobile COVID-19 testing tents and vans have sprouted on urban sidewalks and street curbs as demand has skyrocketed in response to the rapid spread of the omicron variant. Some of the sites run by private companies offer legitimate, timely and reliable results, but others are more like weeds. High demand and scarce supply opened the door to bad actors, and officials in some states are having a hard time keeping up their oversight amid the

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48:41

Saving Manatees, Nighttime Satellite Streaks, Webb...

Science Friday ·

2022/01/28

Space-X Booster To Hit The Moon, After Years Of Hurtling Through Space A Space-X rocket booster is on track to slam into the moon, which scientists predict will happen on March 4. The rocket was originally launched in 2015 to deploy a space weather satellite. Now, it’s a piece of space junk that’s been caught in limbo for the past seven years. Sophie Bushwick, technology editor at Scientific American, joins guest host Miles O’Brien to talk about that and other science stories of the week, including

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49:50

Epstein-Barr Virus and MS, Agrivoltaics, Ag School...

Science Friday ·

2022/01/21

Scientists Are Working On A Universal COVID Vaccine As the Omicron wave of the COVID-19 pandemic continues to spike around the U.S., there are scientists working not on variant-specific boosters, but on a vaccine that might cover every possible strain, past and future. Called universal vaccines, they require a fundamentally different approach from a shot that would target Delta, Omicron, or any other variant. Instead, a universal vaccine would need to train the body to respond to something every

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48:59

Airborne eDNA, Beetle Jumps, Wordle Psychology, City...

Science Friday ·

2022/01/21

Identifying Animals Through Airborne DNA In recent years, the technique of eDNA—environmental DNA, or samples taken from the environment, as opposed to from a specific animal—has changed ecology research. Scientists have learned how to obtain eDNA from water samples, soil, and even the intestinal tract of other animals. Writing recently in the journal Current Biology, two different groups report that air samples collected with filters in a zoo can provide enough DNA to paint a partial picture of the

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798 results

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