Science Quickly

Protein is having a major moment, showing up in everything from snack foods to coffee drinks—but do we actually need more of it? In this episode of Science Quickly, Rachel Feltman speaks with science journalist Bethany Brookshire about what has happened with the rise of the protein craze, how much protein people really need and why most of us are already getting plenty. They explore where the trend came from, what the science says about daily intake and how there are potential downsides to focusing too heavily on protein at the expense of overall diet and sustainability.

Recommended Reading:

Protein is being added to everything from Starbucks’ cold foam to Pop-Tarts. Here’s how much you actually need

The Science That Could Change How You Think about Protein

E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
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In this science news roundup, we start with a deadly hantavirus outbreak linked to a cruise ship. The outbreak is raising concerns about rare human‑to‑human transmission while experts say the risk of a wider pandemic remains low. We also look at new research showing that airborne microplastics and nanoplastics may be contributing to global warming—an unexpected climate effect of plastic pollution. And in Alaska, a massive retreating-glacier‑driven landslide that triggered a dramatic tsunami offers new clues that could help improve early-warning systems in the future.

Recommended Reading:

What you need to know about hantavirus, the infection at the center of a deadly cruise ship outbreak

A dangerous experiment is playing out on a cruise ship with hantavirus

There is no vaccine for deadly hantavirus, but this scientist is working on one

Trump administration cut funding to study hantavirus, the virus behind the deadly cruise ship outbreak

Airborne microplastics could be making climate change worse

A 1,500-foot tsunami took scientists by surprise. Now we know why it happened

E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
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Peptides are everywhere right now—from weight-loss drugs to TikTok wellness hacks—but the science hasn’t caught up with the hype. Journalist Victoria Song joins Science Quickly host Rachel Feltman to break down what peptides actually are, why influencers are promoting “research-only” versions you can buy and inject yourself, and what risks are posed by this growing gray-market trend. From misleading marketing to real safety concerns, we unpack the Internet’s latest wellness obsession. 

Recommended Reading:

“Influencers are pushing suspicious peptides. How much are you willing to risk?” by Victoria Song in the Verge. Published online January 23, 2026

“I don’t think Gwyneth Paltrow knows what a peptide is,” by Victoria Song in the Verge. Published online April 24, 2026

Peptides promise longevity and healing. Does the science back them up?

Where do you stand on the use of peptides for health and wellness?

E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
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In this episode of Science Quickly, journalist Evan Ratliff joins Kendra Pierre-Louis to discuss his audacious experiment: launching a start‑up staffed entirely by autonomous artificial intelligence agents. Ratliff shares what happened when these agents tried to build a product, manage a human intern, pitch investors and even operate on LinkedIn—sometimes with surprising competence and sometimes with outright fabrication.

Recommended Reading:

Listen to Evan Ratliff’s podcast Shell Game

E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was hosted by Kendra Pierre-Louis and edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

In this week’s Science Quickly news roundup, we look at promising results from a new study about preeclampsia. We also cover the latest news about the Trump administration’s push against clean energy. Plus, we remember pioneering geneticist J. Craig Venter, who died last week, and Scientific American’s chief newsletter editor Andrea Gawrylewski shares an interesting defense technology story from the magazine’s May issue. We then dig into a fascinating new study about scorpion stingers and claws. Finally, we ask a strange question: Where was your backyard 320 million years ago?

Recommended Reading:

Could blood filtering help treat one of pregnancy’s most deadly conditions?

Human genome decoder J. Craig Venter dies at age 79

DARPA’s AI is built to call BS on wild weapons claims

See where your backyard was millions of years ago at Paleolaltitude.org

E-mail us at [email protected] if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices