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Popular drug metformin transforms your gut into a sugar sink

Researchers are finally learning the mechanism behind one of the most prescribed medicines in the U.S., primarily used to treat or prevent type 2 diabetes

Squishies are everywhere—but what are they made of?

We asked a simple question: What's in kids' squishy toys? Finding an answer was surprisingly complicated

Neuroscientists have vastly underestimated brain cells’ computing power

A new study shows that each neuron can do multiple computations at once thanks to hundreds of sprawling branches

Stunning time lapse lets you relive the 2026 total solar eclipse in 4K glory

There's a reason humans have been obsessed with these celestial events for millennia—they are beautiful

Drone time lapse shows total solar eclipse in amazing 4K quality

Relive the 2026 total solar eclipse, as seen by a drone over Spain

Rare Tropical Storm Lala on course for Hawaii, with hurricane conditions possible

This storm, a rarity for this part of the Pacific, is expected to bring heavy rains, strong wind and possibly "life-threatening flooding" to Hawaii this weekend

Physicists find major clue to matter’s biggest mystery

Researchers have nailed down an elusive quantity called baryon number, which may be responsible for the cosmic mismatch between matter and antimatter

Mike Fincke, NASA Astronaut Whose Health Scare Led to I.S.S. Evacuation, Has Retired

ADEEL HASSAN

Mike Fincke spent 459 days in space across four missions, the fourth most time of any NASA astronaut.

Trump Wants the M.M.R. Vaccine Split Into Three Separate Shots. Doctors Say It’s a Bad Idea.

APOORVA MANDAVILLI

President Trump is calling for immunizations for measles, mumps and rubella to be given in individual jabs in three different appointments instead of the standard combination shot.

How to Catch the ‘Eclipse of the Century’ in 2027, When Spain, Egypt and More Go Dark

DANIELLE DOWLING

On Aug. 2, Southern Europe, North Africa and the Middle East will witness a solar blockbuster with extra-long totality. If you want to see it, book soon.

This Pesticide May Be Too Dangerous to Use. Farmers Say They Need It.

TED ALCORN

California announced that it’s phasing out paraquat, a pesticide widely used in the United States that is linked to Parkinson’s disease.

A nonspeaking person is the star of this opera. AI made that possible

What if artificial intelligence is used to amplify human creativity rather than replace it?

What the mathematics of billiards can tell us about loving and letting go

A mathematician may have solved a 250-year-old question about whether every polygon contains a path home

When will Betelgeuse go supernova?

Betelgeuse, the sky's most famous red supergiant, is well studied but poorly understood

The X-Files creator Chris Carter on Scully, science and the truth that’s still out there

The creator of The X-Files discusses the Frankenstein elements in the newly released director's cut of "The X-Files: I Want to Believe," and how Mary Shelley's classic influenced the story.