Olympic Athletes Swim the Murky Seine, and Astronauts Are (Still) Stuck on the Space Station

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/ 
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