Raina Maier, Carl Zimmer, Mariah Blake (l-r) at 2026 Tucson Festival of Books, in Tucson, Arizona, on a panel named "Invisible Forces: From Airborne Agents to Global Poisons".

Raina Maier, Carl Zimmer, Mariah Blake (l-r) at 2026 Tucson Festival of Books, in Tucson, Arizona, on a panel named "Invisible Forces: From Airborne Agents to Global Poisons".

Date: 2026-03-14

Attribution: Rosiestep / WikiPortraits

License: CC BY-SA 4.0
Free to use with credit; derivatives must use the same license.

Dimensions: 3073 × 2049 px

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