A blind scientist explains her passion for understanding gravitational waves

By Mallory Yu,

Scott Detrow, Lulu Miller

Published September 21, 2025 at 5:17 PM EDT

Scott Detrow talks to Lulu Miller, the host of Radiolab's Terrestrials podcast, about her conversation with the scientist Wanda Diaz-Merced, who studies gravitational waves that ripple through spacetime.

Mallory Yu

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Scott Detrow

Scott Detrow is a White House correspondent for NPR and co-hosts the NPR Politics Podcast.

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Lulu Miller

Lulu Miller is a contributing editor and co-founder of the NPR program Invisibilia.

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