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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Neuropathologist not guilty of research misconduct, says university probe
The investigation determined that seven papers by corresponding author Adriano Aguzzi have “scientifically significant” errors, which Aguzzi attributes to his former students.
Neuropathologist not guilty of research misconduct, says university probe
The investigation determined that seven papers by corresponding author Adriano Aguzzi have “scientifically significant” errors, which Aguzzi attributes to his former students.
By
Dalmeet Singh Chawla
8 July 2026 | 5 min read
Diverse autism genes derail common developmental pathways
Multiple genetic mouse models initially show delayed cortical development, but the animals’ molecular trajectories diverge within weeks after birth, a new study finds.
Diverse autism genes derail common developmental pathways
Multiple genetic mouse models initially show delayed cortical development, but the animals’ molecular trajectories diverge within weeks after birth, a new study finds.
By
Holly Barker
8 July 2026 | 5 min read
Brain’s sex differences are subtle and contradictory, large MRI study finds
Sex-based behavioral differences do not match with variations in brain activation or structure in a study of almost 1,000 people.
Brain’s sex differences are subtle and contradictory, large MRI study finds
Sex-based behavioral differences do not match with variations in brain activation or structure in a study of almost 1,000 people.
By
Lauren Schenkman
8 July 2026 | 5 min read