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This week in science: running and the brain, fermented space food and bat navigation

NPR's Short Wave brings us the stories of how running a marathon could change your brain, fermenting food in space, and the mystery of how bats in flight avoid colliding with each other.

Copyright 2025 NPR

Regina G. Barber
Regina G. Barber is Short Wave's Scientist in Residence. She contributes original reporting on STEM and guest hosts the show.
Rachel Carlson
Rachel Carlson (she/her) is a production assistant at Short Wave, NPR's science podcast. She gets to do a bit of everything: researching, sourcing, writing, fact-checking and cutting episodes.
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