New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave

New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength. If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave

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The U.S. may need 100,000 people trained in the public health practice of contact tracing — tracking and isolating people who've been in contact with someone who tests positive for the coronavirus. NPR health policy reporter Selena Simmons-Duffin explains how it works, and why it's a key part of the fight against the pandemic. 
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Contact Tracing Is Key To Reopening. We're Not There Yet