Hike north on the Appalachian Trail and the scenery slowly transforms. Rugged, steep ridgelines in Tennessee and Virginia soften into the broad summits and smooth peaks of Pennsylvania and New Jersey.

Sunspots are cooler areas on the sun's surface that appear darker compared to their surroundings. These solar blemishes are ...

This shift, researchers say, marks a climatic tipping point—and it may have shaped the evolution of our species. “Things were ...

We are only at the beginning of climate destabilization, in which winter weather grows more erratic and extreme.

Fresh observations from the James Webb Space Telescope show how vivid auroras surge through Uranus’s tilted magnetic field ...

A closer look at Earth’s history shows that melting ice sheets temporarily increased stratification in the Southern Ocean.

ALYSA LIU'S GOLD-WINNING FREE SKATE ROUTINE! ⭐️ #WinterOlympics pic.twitter.com/mH8tZkFCdK — NBC Olympics & Paralympics (@NBCOlympics)0, 2026 Liu herself is a testament to how brutal figure skating ...

In essays and books, he explored physical landscapes and the terrain of his own life, up to the blindness that overtook him ...

We know Aotearoa New Zealand is home to many geographically and biologically special features. Yet few of us know it also has its very own measure of ...

Neptune’s mid-latitude clouds began fading in 2019 and have not recovered, according to nearly three decades of observations from the Hubble Space Telescope and ground-based observatories. By 2020, ...

Extreme ice melt in Greenland is expanding rapidly, with meltwater production increasing sixfold since 1990, new research ...