Firefighters battle new blaze in California

Hundreds of California firefighters on Tuesday battled a wind-driven brushfire that grew out of control overnight near Santa Barbara, threatening thousands of homes and prompting evacuation orders.

Hurried evacuations as wildfires rage in California

Californian firefighters on Friday battled a fast-moving wildfire north of Los Angeles as further evacuation orders were issued after 40,000 residents were already told to flee their homes.

US states' drones inspect bridges, help predict avalanches

In Utah, drones are hovering near avalanches to watch roaring snow. In North Carolina, they're searching for the nests of endangered birds. In Kansas, they could soon be identifying sick cows through heat signatures.

OSIRIS-REx reveals asteroid Bennu has big surprises

A NASA spacecraft that will return a sample of a near-Earth asteroid named Bennu to Earth in 2023 made the first-ever close-up observations of particle plumes erupting from an asteroid's surface. Bennu also revealed itself ...

Researchers make a key discovery on how alpine streams work

An EPFL study has prompted scientists to rethink a standard approach used to calculate the velocity of gas exchange between mountain streams and the atmosphere. Research conducted in streams in Vaud and Valais indicate that ...