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.
Explore more from The Transmitter
Not playing around: Why neuroscience needs toy models
Amid the rise of billion-parameter models, I argue that toy models, with just a few neurons, remain essential—and may be all neuroscience needs.
Not playing around: Why neuroscience needs toy models
Amid the rise of billion-parameter models, I argue that toy models, with just a few neurons, remain essential—and may be all neuroscience needs.
By
Marcus Ghosh
22 December 2025 | 6 min read
Psychedelics research in rodents has a behavior problem
Simple behavioral assays—originally validated as drug-screening tools—fall short in studies that aim to unpack the psychedelic mechanism of action, so some behavioral neuroscientists are developing more nuanced tasks.
Psychedelics research in rodents has a behavior problem
Simple behavioral assays—originally validated as drug-screening tools—fall short in studies that aim to unpack the psychedelic mechanism of action, so some behavioral neuroscientists are developing more nuanced tasks.
By
Calli McMurray
19 December 2025 | 8 min read
New organoid atlas unveils four neurodevelopmental signatures
The comprehensive resource details data on microcephaly, polymicrogyria, epilepsy and intellectual disability from 352 people.
New organoid atlas unveils four neurodevelopmental signatures
The comprehensive resource details data on microcephaly, polymicrogyria, epilepsy and intellectual disability from 352 people.
By
Diana Kwon
17 December 2025 | 4 min read