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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21 September 2026 | 4 min read
Measuring plastic in the brain: Improving, but incomplete
Meanwhile, researchers are publishing papers without “sufficient quality control,” says analytical chemist Dušan Materić.
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Meanwhile, researchers are publishing papers without “sufficient quality control,” says analytical chemist Dušan Materić.
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Amber Dance
18 September 2026 | 9 min read
Incredible shrinking grant deadlines at the BRAIN Initiative
“A month is crazy,” says one former recipient, referring to a new funding opportunity’s timeline.
Incredible shrinking grant deadlines at the BRAIN Initiative
“A month is crazy,” says one former recipient, referring to a new funding opportunity’s timeline.
By
Brendan Borrell
17 September 2026 | 4 min read