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The evolutionary history of kissing, moss in space, and the origins of the moon

Emily Kwong and Regina Barber of NPR's Short Wave podcast talk about the evolutionary history of kissing, how moss spores fare in space, and new clues about the collision that created the moon.

Copyright 2025 NPR

Emily Kwong (she/her) is the reporter for NPR's daily science podcast, Short Wave. The podcast explores new discoveries, everyday mysteries and the science behind the headlines — all in about 10 minutes, Monday through Friday.
Regina G. Barber
Regina G. Barber is Short Wave's Scientist in Residence. She contributes original reporting on STEM and guest hosts the show.