Science Talk

NASA’s Perseverance rover cautiously climbs Jezero Crater on Mars in search of new discoveries. We also explore recent revelations about the Red Planet’s hidden water reserves and puzzling sulfur findings. On the health front, a new device, described as an implant that acts like a pacemaker for the brain, shows promise for Parkinson’s treatment by reducing symptoms more effectively than conventional methods. Plus, we discuss a concerning side effect of the popular weight-loss drug semaglutide, fears of a polio outbreak in Gaza and the latest on mpox, which the World Health Organization declared a global health emergency earlier this month.

Recommended Reading: 

Mars Hides Colossal Ocean Deep Below Its Surface

People Are Overdosing on Semaglutide Drugs like Ozempic and Wegovy

Mpox Is a Global Health Emergency. Here’s What We Know

Email 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 our daily newsletter. 

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

The Democratic presidential ticket has literally diverse voices. While Vice President Kamala Harris’s speech is influenced by her Californian origins, the way Minnesota governor Tim Walz talks reflects his roots in Nebraska. In our podcast, linguist Nicole Holliday expands on her viral TikTok analyses of Harris’s speech patterns and the ideological stereotypes we attach to pronunciation and intonation. 

Recommended reading:

Watch one of Holliday’s viral TikToks

Bilingualism Is Reworking This Language’s Rainbow 

Grammar Changes How We See, an Australian Language Shows 

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith. 

Learn more about your ad choices. Visit megaphone.fm/adchoices

Polymetallic nodules litter a stretch of ocean between Mexico and Hawaii. They contain metals, such as manganese and cobalt, that mining companies want to use for battery production. Researchers recently found that these seafloor blobs might make their own oxygen—and no one knows exactly how. Scientific American’s associate news editor Allison Parshall explains the hype behind this “dark oxygen.”

Recommended reading:

‘Dark Oxygen’ Discovered Coming from Mineral Deposits on Deep Seafloor https://www.scientificamerican.com/article/dark-oxygen-discovered-coming-from-mineral-deposits-on-deep-seafloor/

Earth’s Coral Reefs Face a New, Deadly Mass Bleaching. They Can Still Be Saved

https://www.scientificamerican.com/article/earths-coral-reefs-face-a-new-deadly-mass-bleaching-they-can-still-be-saved/ 

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest and associate news editor Allison Parshall. Shayna Posses and Aaron Shattuck fact-check our show. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

Doris Tsao is the 2024 recipient of The Kavli Prize in Neuroscience for her research on facial recognition. Her work has provided insights into the complex workings of the brain and has the potential to advance our understanding of perception and cognition.

This podcast was produced for The Kavli Prize by Scientific American Custom Media, a division separate from the magazines board of editors.

Learn more about your ad choices. Visit megaphone.fm/adchoices

James Cameron is known for his ambitious filmmaking. His newest project is a six-part National Geographic miniseries that goes beneath the waves with the crew of the OceanXplorer. Cameron joins Science Quickly host Rachel Feltman to talk about the origins of his fascination with the ocean and the importance of seeing scientists at work.

Recommended reading:

Mysterious Galápagos Reefs Harbor Strawberry Squid and Other Fantastic Creatures https://www.scientificamerican.com/article/mysterious-galapagos-reefs-harbor-strawberry-squid-and-other-fantastic-creatures1/ 

Healthy Coral Reefs Sound like a Symphony https://www.scientificamerican.com/podcast/episode/this-is-how-a-healthy-coral-reef-sounds-and-why-it-matters/ 

Earth’s Coral Reefs Face a New, Deadly Mass Bleaching. They Can Still Be Saved https://www.scientificamerican.com/article/earths-coral-reefs-face-a-new-deadly-mass-bleaching-they-can-still-be-saved/ 

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest James Cameron.Our show is edited by Fonda Mwangi with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

When the hit podcast Science Vs went to find the facts about the “male G-spot,” it was faced with remarkably little research to draw from. So the team collaborated with academics on one of the largest surveys about anal sex and masturbation. We discuss what they learned, on this episode of Science Quickly with Rachel Feltman and special guest Wendy Zukerman of Science Vs. 

Recommended reading:

Mind-Blowing Orgasms: Does the Male G-Spot Exist? 

How to Explore Your Sexuality, according to Science  

Asexuality Research Has Reached New Heights. What Are We Learning? 

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest Wendy Zukerman, host of Science Vs. Our show is edited by Fonda Mwangi with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

Debris from satellites, rockets and other space infrastructure are crowding low-Earth orbit. Occasionally, that space junk crashes down to Earth. For Samantha Lawler, an associate professor of astronomy at the University of Regina in Saskatchewan, such debris was mostly a theoretical nuisance. Then a nearby farmer found remnants of a SpaceX craft on his land, and Lawler was pulled into the murky legal landscape around space junk in the skies and on the ground.

Recommended reading: 

SpaceX Dropped Space Junk on My Neighbor’s Farm. Here’s What Happened Next 

Space Junk Is Polluting Earth’s Stratosphere with Vaporized Metal 

Space Trash Threatens the Global Economy

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest Samantha Lawler. Our show is edited by Fonda Mwangi with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

The 2024 Summer Olympics in Paris came to a close on Sunday—and swimmers swam the Seine as promised. The two astronauts sent to the International Space Station on a Boeing Starliner craft in June are still in limbo, with no set return flight. The EPA is acting quickly to suspend sales of products that contain the pesticide dimethyl tetrachloroterephthalate over safety concerns. Plus, we discuss a new theory of how the pyramids were built (and no, it doesn’t involve aliens).

Recommended reading:

Cleaning Up Paris’s Poop River for the Olympics  https://www.scientificamerican.com/podcast/episode/cleaning-up-the-poop-polluted-seine-for-the-paris-olympics/ 

Lost Branch of the Nile May Solve Long-Standing Mystery of Egypt’s Famed Pyramids https://www.scientificamerican.com/article/egypts-famed-pyramids-overlooked-a-long-lost-branch-of-the-nile/ 

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Fonda Mwangi with fact-checking by Shayna Posses and Aaron Shattuck.  The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices

Content warning: This episode focuses in part on the archaeological study of ancient human sacrifice, including incidents involving young children. While we have taken care not to include gratuitous descriptions of violence, this episode does contain frank discussion of the circumstances of these deaths and the nature of these individuals’ remains.

In the final episode of our three-part series on unusual archaeology, science journalist Kata Karáth takes you on one more adventure—to a mountaintop with an extreme climate, where archaeologists investigate the practice of human sacrifice among the Inka.

Listen to the first two episodes of this series exploring humanity’s past:

— Sustainable Fishing with Ancient Chambers and Ocean Tides

— How Ancient Humans Interpreted the Cosmos

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

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

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was reported and hosted by Kata Karáth with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith. Special thanks to María Luz Endere and Carlos Molina-Vital for their assistance with parts of this script.

Learn more about your ad choices. Visit megaphone.fm/adchoices

Host Rachel Feltman is joined by conservation bioacoustics researcher Isla Keesje Davidson to explore the vibrant world of coral reefs through an unexpected lens: sound. They discuss how healthy coral reefs sound different from those in distress, why listening to the ocean could be key to its preservation and how you can be part of this groundbreaking research.

Recommended reading: 

— Earth’s Coral Reefs Face a New, Deadly Mass Bleaching. They Can Still Be Saved

— We Can Save Earth’s Coral Reefs

Email 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 our daily newsletter. 

Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman, featuring guest Isla Keesje Davidson. Our show is fact-checked by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices