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.

From this contributor

Explore more from The Transmitter

Nerve fibers from the human graft in mouse brain.

Human brain organoids flourish in emptied mouse cortex

The chimeric mice could help untangle the biology of human brain development or conditions such as autism.

By Brianna Abbott
16 September 2026 | 6 min read

What if Hegel were a neuroscientist?

Andrea Gambarotto shares what Hegel and enactivism have in common: an agency-first approach to understanding minds and brains.

By Paul Middlebrooks
16 September 2026 | 1 min read
Illustration of genetic associations.

This paper changed my life: Transformative work in addiction neuroscience

A 2011 Nature study found that loss of a nicotinic receptor subunit leads to increased nicotine intake in mice. The work set the standard for how to functionally validate genetic association study findings in neuroscience.

By Jibran Khokhar
16 September 2026 | 6 min read