Kenna Hughes-Castleberry is science communicator at JILA and editor-in-chief of their journal, Light & Matter. She is also a freelance science journalist. Her beats include quantum technology, artificial intelligence, diversity within the tech industries, animal intelligence, corvids and cephalopods. Her work has been featured in various publications, including Scientific American, New Scientist, Discover Magazine, Ars Technica, Nature Biotechnology, Astronomy Magazine, Leaps Magazine, Hakai Magazine, ChemistryWorld, Physics.org, Colorado Magazine, Inside Quantum Technology, The Debrief and more. She sits on the board of the Science Writers Association of the Rocky Mountains (SWARM) and teaches science writing to graduate students at JILA.
Kenna Hughes-Castleberry
Contributing writer
From this contributor
Number-associated neurons help crows link values to symbols
Comparable neurons also exist in primates, which shared a common ancestor with crows more than 300 million years ago, suggesting that the ability to “count” evolved independently in the two lineages.
Number-associated neurons help crows link values to symbols
By
Kenna Hughes-Castleberry
19 January 2024 | 4 min read
Explore more from The Transmitter
By
Claudia López Lloreda, Calli McMurray, Natalia Mesa, Madeline Shaw
5 October 2026
11 min read
How Nobel Prize-winning optogenetics has revolutionized neuroscience
The technique has enabled neuroscientists to target brain circuits and cells with unprecedented specificity, transforming the study of memory, interoception, brain disorders and reward, among other domains.
How Nobel Prize-winning optogenetics has revolutionized neuroscience
The technique has enabled neuroscientists to target brain circuits and cells with unprecedented specificity, transforming the study of memory, interoception, brain disorders and reward, among other domains.
By
Claudia López Lloreda, Calli McMurray, Natalia Mesa, Madeline Shaw
5 October 2026 | 11 min read
Is confidence a second thought—or part of the first one?
In some settings, neural circuits may calculate confidence in a decision simultaneously with the choice itself. That changes the types of questions researchers should ask.
Is confidence a second thought—or part of the first one?
In some settings, neural circuits may calculate confidence in a decision simultaneously with the choice itself. That changes the types of questions researchers should ask.
By
Ariel Zylberberg
5 October 2026 | 6 min read
What AI can learn from hunger
To enhance AI safety, take a lesson from biological brains; a small set of wants maintains durable control over a much larger cognitive system.
What AI can learn from hunger
To enhance AI safety, take a lesson from biological brains; a small set of wants maintains durable control over a much larger cognitive system.
By
Anthony Zador
5 October 2026 | 6 min read