Leto Sapunar is a freelance science journalist covering physics, space, climate and science accountability since 2020. He has been writing for Popular Science since early 2021, and his work can also be found in Scientific American, Inside Climate News and Retraction Watch, among other outlets.
Leto Sapunar
From this contributor
Pinning hope to ketamine
Doctors can prescribe it, but evidence that ketamine eases autism traits is still preliminary.
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The facilities were meant to last 100 years. Four decades shy of that mark, amid flatlined funds and mounting political pressure, their directors are trying to find a path forward.
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The facilities were meant to last 100 years. Four decades shy of that mark, amid flatlined funds and mounting political pressure, their directors are trying to find a path forward.
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9 October 2026 | 12 min read
What if nonhuman primate research goes away?
As the U.S. government takes steps to stop using nonhuman primates in research, The Transmitter investigates what that shift could mean for neuroscience.
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As the U.S. government takes steps to stop using nonhuman primates in research, The Transmitter investigates what that shift could mean for neuroscience.
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The Transmitter
9 October 2026 | 2 min read
The neuroscience questions that need nonhuman primates
The Transmitter asked 17 neuroscientists what questions might remain unanswered if support for nonhuman primate research continues to decline.
The neuroscience questions that need nonhuman primates
The Transmitter asked 17 neuroscientists what questions might remain unanswered if support for nonhuman primate research continues to decline.
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Alissa de Chassey
9 October 2026 | 10 min read