Some particles that landed on the water were big enough to see with the naked eye. The largest chunks the group measured were ...

When more densely populated Altadena and Pacific Palisades burned along with surrounding wildlands, hazards for residents ...

By poring over thousands of satellite images, researchers geolocated 245 fresh boulder tracks, revealing signs of seismic ...

In recent years, scientists have found that machine learning–based weather models can make weather predictions more quickly ...

How have scientists across Los Angeles used their skills to help their communities recover from the 2025 fires?

The changes in Madden-Julian Oscillation wind can trigger a response in the deep equatorial Pacific and Indian Ocean.

The U.S. Department of Agriculture (USDA) is proposing rescinding the 2001 Roadless Area Conservation Rule, which protects about 45 million acres (182,000 square kilometers) of National Forest ...

In June 2025, I recorded 51 fatal landslides worldwide, resulting in 479 fatalities. The number of landslides is above the long term mean.