Are There Colors That Only Exist In Our Brains? Find Out More In...

Are There Colors That Only Exist In Our Brains? Find Out More In Issue 35 Of CURIOUS – Out Now

Is a “gut feeling” real? Can sheep livers predict the future? All this and more exclusively in the latest issue of our e-magazine.

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Picture of the cover of CURIOUS magazine:an illustration of an eye surrounded by colors of the rainbow and the cover story question "are there colors that only exist in our brains?" — This issue's cover story: are there colors that only exist in our brains?
Image credit: amarlettering/Envato, cosmicbirdy/iStock, modified by IFLScience

Issue 35 (June 2025) of CURIOUS is out now, bringing you science highlights for the month plus deep dives into intriguing topics, interviews, exclusives, diary dates, and explanations for some of Earth’s most perplexing natural phenomena and landscapes.

Read Issue 35 of our digital magazine now by clicking below! Use the arrows to navigate or download the PDF for easy access.

In This Issue…

OUR COVER STORY: Are There Colors That Only Exist In Our Brains?

Prepare to be bewildered by the riddle of the rainbow.

DEEP DIVE: Is A “Gut Feeling” Real?

Should you listen to your gut, or is it your brain talking to you?

WE HAVE QUESTIONS: Can Sheep Livers Predict The Future?

I mean, they saw Trump coming.

WHERE ON EARTH: Milford Sound Piopiotahi

New Zealand’s misleadingly named Milford Sound Piopiotahi is a breathtaking fjord once described as the “eighth wonder of the world”.

Exclusive: Meet author Riley Black and read an excerpt from her new book When The Earth Was Green.

Plus: News, diary dates, what to see, watch, and read this month, and much more.