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Earth Sciences May 4, 2024

Seismic waves used to track LA's groundwater recharge after record wet winter

Record-setting storms in 2023 filled California's major reservoirs to the brim, providing some relief in a decades-long drought, but how much of that record rain trickled underground?

Earth Sciences May 3, 2024

Lahar detection system upgraded for Mount Rainier

In the shadow of Washington State's Mount Rainier, about 90,000 people live in the path of a potential large lahar—a destructive, fluid and fast-moving debris flow associated with volcanic slopes.

Earth Sciences May 2, 2024

A clock in the rocks: What cosmic rays tell us about Earth's changing surface and climate

How often do mountains collapse, volcanoes erupt or ice sheets melt?

Earth Sciences May 2, 2024

In the Jersey suburbs, a search for rocks to help fight climate change

In early spring, George Okoko was perched on a ledge 15 feet up a crumbly cliff, trying to whack off a basketball-size piece of rock with a hammer and chisel. The locale was suburban Berkeley Heights, N.J. The rock was basalt, ...

Earth Sciences May 1, 2024

Do earthquake hazard maps predict higher shaking than actually occurred? Research finds discrepancy

A new study by Northwestern University researchers and coworkers explains a puzzling problem with maps of future earthquake shaking used to design earthquake-resistant buildings. The research was published May 1 in the journal ...

Astrobiology Apr 30, 2024

Enceladus spills its guts through strike–slip motion

Over the course of its elliptical orbit, the moon Enceladus is squeezed unevenly by Saturn's gravitational pull and deforms from a spherical shape into a football shape and back again. This cyclic stress causes a phenomenon ...

Environment Apr 30, 2024

Indonesia's Mount Ruang erupts again, spewing ash and peppering villages with debris

Indonesia's Mount Ruang volcano erupted Tuesday for a second time in two weeks, spewing ash almost 2 kilometers (more than a mile) into the sky, closing an airport and peppering nearby villages with debris.

General Physics Apr 29, 2024

Laser excitation of Th-229 nucleus: New findings suggest classical quantum physics and nuclear physics can be combined

Physicists have been hoping for this moment for a long time: For many years, scientists all around the world have been searching for a very specific state of thorium atomic nuclei that promises revolutionary technological ...

Optics & Photonics Apr 25, 2024

Airborne single-photon lidar system achieves high-resolution 3D imaging

Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. This advance could make single-photon lidar practical for air and ...

Earth Sciences Apr 24, 2024

Quakes do not kill people, bad buildings do

Early on Tuesday (April 23), Taiwan was hit by a series of earthquakes with the highest magnitude at 6.3. The latest tremor came less than three weeks after a magnitude 7.4 quake hit the island, damaging more than 100 buildings ...

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