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Why Scientists Are Performing Brain Surgery on Monarchs

ALEXA ROBLES-GIL, LEILA MEDINA, JOEY SENDAYDIEGO AND MARK FELIX

Scientists in Texas are studying monarch butterflies to understand how they navigate thousands of miles, possibly by sensing Earth’s magnetic field. Alexa Robles-Gil explains how researchers are examining the butterflies’ brains to find answers.

Spectacular Cosmic Collision Captured in New Hubble Image

NASA's Hubble Space Telescope captured asteroids crashing into one another in a nearby planetary system around a star some 25 light-years away

10 Transformational Health Discoveries of 2025

From advancements in male birth control to the science of supplements, Scientific American highlights some of the most fascinating health and medicine stories of 2025

Wegovy Pill Becomes First Oral GLP-1 Weight-loss Drug Approved in U.S.

A pill version of the popular GLP-1 weight-loss drug Wegovy has been greenlit for use in the U.S. Here's what that means for health care

FCC Drone Ban—What the New ‘Covered List’ Means for DJI and Pilots

The U.S.'s decision to ban the sale of new foreign-made drones will have far wider-reaching implications than its effect on pilots' ability to access new models and parts

Tired of an Old-Fashioned Yule Log Video? Try These Scientific Alternatives Instead

Happy holidays from all of us at Scientific American

What Researchers Are Doing to Protect Christmas Trees in a Warming World

As Christmas trees face mounting challenges from climate change, researchers explore solutions to help ensure that a beloved holiday tradition endures in a warming world.

Our 7 Best Science TikToks You Need to Watch Right Now

On TikTok and other short-form video platforms, Scientific American explored the underground labs of Greenland, brand-new colors and the perfect way to make eggs

Sparkling Galaxy Merger Shines in New Euclid Space Telescope Image

The Euclid Space Telescope is decking the halls with boughs of starlight

This City’s Best Winter Show Is in Its Pitch-Dark Skies

THE NEW YORK TIMES

A heritage of dark sky preservation means residents of Flagstaff welcome the season’s longer nights with prolonged views of the stars.