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Yale study finds 'Medicare for All' could save $1 trillion and 114,000 lives every year

The study has been touted by Vermont Senator Bernie Sanders as proof of the benefits of a universal, single-payer healthcare system, but the research hasn't been peer-reviewed

See hundreds of stingrays swarming off the coast of New York

A "fever" of cownose rays revealed by striking drone footage could be a sign of warming oceans

Major COVID study that fueled vaccine skepticism retracted over 'misinformation'

The study was originally published in 2024 and was criticized by other scientists at the time as being misleading

See the 2026 total solar eclipse from around the world

From a partial eclipse over Berlin to totality over Spain, see some of the incredible images of the August 12 total solar eclipse

As Europe Faces Heat Waves and Wildfires, Travelers Are Forced to Adapt

RYLEY OBER

Soaring temperatures, widespread wildfires and dried-up rivers are transforming tourism across the continent. Here’s how travelers are responding.

Estrogen-only hormone therapy could lower risk of Alzheimer’s

In a retrospective study, people taking estrogen-only hormone therapy for menopause were less likely to see signs of dementia

The MOTHRA Telescope Captured the Faint Aftermath of a Star’s Death

K. R. CALLAWAY

During early calibration tests, the MOTHRA telescope’s array of lenses, which will soon number 1,140, captured stellar debris dissolving into space around the Helix Nebula.

The Perseids, Summer’s Strongest Meteor Shower, Will Peak Tonight

KATRINA MILLER

Unlike the total solar eclipse that swept across Europe, the Perseids can be seen at night by anyone in the Northern Hemisphere.

What to Know About Europe’s Total Solar Eclipse: Where to See It and How to Watch Safely

KATRINA MILLER

We’re answering some questions about the solar eclipse on Aug. 12, and providing a place for you to ask more of them.

Telescope Spots Two Black Holes on the Cusp of Merging

AMANDA SCHUPAK

New images from the James Webb telescope show a galaxy with a trio of supermassive black holes. Two of them appear to be locked in a tight tango.

Effects of Record-Breaking El Niño Are Happening on 3 Continents

RAYMOND ZHONG AND CHICO HARLAN

The recurring climate phenomenon is expected to peak later this year, but it is already causing dry spells and crop failures on three continents.

From Nest to Deathbed, Jackie the Eagle Entranced California and Beyond

SHAWN HUBLER AND ALEXANDRA E. PETRI

The bald eagle and her mate gained fame during the pandemic, as a livestream tracked their nesting attempts. She died while being treated for anemia.

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