Scientists zero in on cause of vast seabird die-off

Scientists think they know what's causing tens of thousands of seabird deaths along the shores from California to Alaska

• Feb 10, 2017

Antarctic expedition to hunt for "missing" meteorites

Researchers are on the hunt for meteorites that may hold clues to the formation of the solar system

• Feb 10, 2017

Watch: Volcano smiles for the camera

One of the world's most active volcanoes seems as happy as can be

• Aug 1, 2016

​Earthquake swarm detected beneath Mount St. Helens

There have been more than 130 earthquakes near the volcano over the last eight weeks, according to the U.S. Geological Survey

• May 8, 2016

NASA releases nearly 3 million thermal Earth images

Images from 16-year database include everything from an EF-5 tornado to volcanic eruptions in Iceland

• Apr 4, 2016

Surprising cause of Yosemite rockfalls discovered

New study helps determine what leads to some dangerous rockfalls in Yosemite National Park

• Mar 29, 2016

Man-made earthquakes could put millions at risk

The U.S. Geological Survey released the first earthquake hazard map that shows both man-made and naturally occurring quakes

• Mar 29, 2016

Scientists investigate massive seabird die-off in Alaska

What's killing thousands of common murres, one of North America's most abundant seabirds?

• Jan 12, 2016

​Magnitude-4.4 earthquake shakes Southern California

Quake followed by at least two strong aftershocks but no reports of damage or injuries

• Dec 29, 2015

Nation's highest peak found to be a few feet shorter

Mountaineers climbed Denali (the former Mount McKinley) this summer to check estimates made in the 1950s

• Sep 2, 2015

Mutant fossils offer clues to mass extinction

Scientists say toxic metals may have played a role in an extinction event more than 400 million years ago

• Sep 2, 2015

Nearly half of Americans at risk of an earthquake

Study finds more than 140 million Americans could experience the ground-shaking effects of a quake, twice previous estimates

• Aug 10, 2015

35 years after Mount St. Helens eruption, nature returns

After the blast destroyed 230 square miles of forest, a new ecosystem emerged - often more vibrant and diverse than before

• May 18, 2015

Is Nepal quake triggering temblors in other regions?

After two more quakes hit thousands of miles away, some wonder if there's any connection

• May 1, 2015

How do you find a Burmese python in the Everglades?

Scientists for the first time have tracked the invasive predators as they terrorize the national park

• Apr 28, 2015

​Your poop may be a goldmine -- literally

Research finds that solid waste from sewers contains gold, silver and other metals that could be reused in electronics

• Mar 23, 2015