Leto Sapunar headshot

Leto Sapunar


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 AmericanInside Climate News and Retraction Watch, among other outlets.

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Illustration of differing lines of data.

Eighteen teams analyzed the same neurophysiology dataset—and got wildly different answers

The “Brainhack” hackathon revealed that disagreement in neuroscience runs deeper than most researchers suspect—even in electrophysiology, a field that prides itself on hard data.

By Gaëlle Chapuis, Mattia Chini
1 June 2026 | 7 min read
Research image of inputs into a single neuron in the mouse visual cortex.

‘Unbelievably beautiful’ evidence extends Nobel Prize-winning model of vision

Orientation tuning—the ability to distinguish a horizontal line from a vertical one or something in between—originates in the visual cortex, according to new mouse synapse imaging experiments.

By Claudia López Lloreda
29 May 2026 | 5 min read
Illustration of people connecting basic science.

Bringing basic biology back to INSAR

As the International Society for Autism Research has grown over the past two decades, basic science has become less central, Christine Wu Nordahl says. This year, she and other meeting organizers aimed to change that.

By Diana Kwon
28 May 2026 | 6 min read