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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Still no proof for facilitated spelling methods
A systematic review into whether the “rapid prompting method” or “spelling to communicate” can help autistic people express themselves comes up empty yet again.
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Oregon primate center scientists fight proposed sanctuary transition
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A group of employees has launched a series of campaigns to advocate for their work and argue against the center’s potential transition to an animal sanctuary.
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Calli McMurray
21 May 2026 | 6 min read