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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Polarized cortical organoids mimic the brain’s regional organization
The organoids show region-specific gene-expression changes that match those observed during fetal development.
Polarized cortical organoids mimic the brain’s regional organization
The organoids show region-specific gene-expression changes that match those observed during fetal development.
By
Holly Barker
24 September 2026 | 4 min read
Prefrontal cortex has three transcriptomic acts across human lifespan, new atlas suggests
Various genes show distinct exits and entrances with age in the open-source dataset, the largest of its kind to date.
Prefrontal cortex has three transcriptomic acts across human lifespan, new atlas suggests
Various genes show distinct exits and entrances with age in the open-source dataset, the largest of its kind to date.
By
Siddhant Pusdekar
23 September 2026 | 5 min read
Microglia scoop out garbage from inside neurons
Through a newly identified process called skoupocytosis, neurons recruit the immune cells to remove cellular waste they find hard to deal with themselves.
Microglia scoop out garbage from inside neurons
Through a newly identified process called skoupocytosis, neurons recruit the immune cells to remove cellular waste they find hard to deal with themselves.
By
Siddhant Pusdekar
23 September 2026 | 0 min watch