Science Quickly

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.

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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.

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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.

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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.

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The American Cancer Society published a study suggesting that for 8 or 34 cancers tracked, case rates are rising from one generation to the next. While headlines often point to sedentary lifestyles and higher weights as a possible cause, some experts say that these factors alone cannot explain the spike. In more hopeful oncology news, there’s a new blood test for colorectal cancer–though it doesn’t replace the importance of colonoscopies. 

SpaceX is delaying their attempt at the first-ever private spacewalk—billionaire Jared Isaacman will have to wait. And on the ground, move over hardwood and softwood—two surviving species of the Liriodendron genus point to a new categorization of midwood.

Recommended reading:

Gen X Faces Higher Cancer Rates Than Any Previous Generation 

Why We’ll Never Live in Space 

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

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Gazing up at the night sky is a universal human experience, likely as old as our species itself. But how did our ancient ancestors feel about what they saw in the heavens, and how did it shape their lives? In Episode Two of our three-part Fascination miniseries on unusual archaeology, science journalist Kata Karáth introduces us to archaeoastronomy—the study of how people in the past experienced and explained the phenomena of the cosmos.

Listen to the first episode of this series: “Sustainable Fishing with Ancient Chambers and Ocean Tides”

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 Jeff DelViscio, Fonda Mwangi, Kelso Harper, Madison Goldberg and Rachel Feltman. This episode was reported and hosted by Kata Karáth. Special thanks to Saara Alakorva and Camilla Brattland for their assistance with parts of this script. Shayna Posses and Aaron Shattuck fact-checked this series. The theme music was composed by Dominic Smith.

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Sex testing has a long history in sports. As participation in events like the Olympics opened to women, organizers and audiences alike began questioning the sex of the athletes. The tests devised to “prove” an athlete’s sex have been invasive and inaccurate. Rose Eveleth, host of the NPR and CBC podcast Tested, brings us the story of sex testing and where the science stands.

Listen to Tested: https://link.chtbl.com/zQEKpQCE

Read Olympic coverage from Scientific American:

Is Technology in the Olympics a Form of Doping or a Reality of Modern Sport? https://www.scientificamerican.com/article/is-technology-in-the-olympics-a-form-of-doping-or-a-reality-of-modern-sport/

For Olympic Athletes, First Come the Games—Then Come the Post-Olympics Blues https://www.scientificamerican.com/article/for-olympic-athletes-first-come-the-games-then-come-the-post-olympics-blues/

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 Rose Eveleth, host of Tested. Shayna Posses and Aaron Shattuck fact-check our show. The theme music was composed by Dominic Smith.

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It’s a scorching summer, with record-breaking temperatures last Monday. Rain really is harder to predict, and greenhouse gasses are probably to blame. Polio is circulating in Gaza’s wastewater and could spread as conflict leads to crowding, poor sanitation and missing routine vaccinations. Plus, we discuss a shocking price for a promising HIV vaccine, cocaine sharks and komodo dragons with iron-tipped teeth. 

Recommended reading:

Sharks in Brazil Test Positive for a Surprising Contaminant: Cocaine 

Komodo Dragons’ Nightmare Iron-Tipped Teeth Are a Reptilian First 

Why Extreme Heat Is So Deadly 

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. This show was edited by Jeff DelViscio, with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Fish trapping is an ancient practice, reaching across the globe from at least as far back as 11,000 years ago. It takes advantage of coastal tides and human-made chambers to catch and release fish. The simple but ingenious ancient fishing structures are built on two intertwining principles: the ocean can provide for us if we properly care for it.

Archaeologists are mapping the possible locations of ancient traps. And on Penghu, a group of islands off of Taiwan, people are reviving the traditional tidal weirs, hoping to promote sustainable fishing and attract ecotourism. 

Stay tuned for more from science journalist Kata Karáth in part two of our three-part Fascination series on unusual archaeology.

Recommended reading:

– Oldest Deep-Sea Shipwreck Is a ‘Time Capsule’ from the Bronze Age

– The Oldest-Wine-in-the-World Title Goes to a 2,000-Year-Old White Found in Southwestern Spain

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 and journalist Kata Karáth. Shayna Posses and Aaron Shattuck fact-check our show. The theme music was composed by Dominic Smith.

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Meditation is mostly mainstream, with many people using mindfulness to manage stress. But dedicated practitioners of advanced meditation move beyond mindfulness into a state where consciousness “entirely falls away.” That’s according to today’s guest: Matthew Sacchet, an associate professor and director of the Meditation Research Program at Harvard Medical School and Massachusetts General Hospital. Sacchet tells host Rachel Feltman about his journey from youthful meditator to neuroscience researcher. Plus, they discuss what meditation and psychedelic experiences are unlocking for consciousness researchers.

Recommended reading:

Read a feature co-authored by Sacchet in the July issue of SciAm 

And see our June issue feature on the neuroscience of near-death experiences

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 Matthew Sacchet. Our show is edited by Madison Goldberg and Anaissa Ruiz Tejada, with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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