Scientists have discovered nearly 1 000 previously undetected earthquakes beneath East Antarctica after applying machine-learning techniques to seismic records collected decades ago, revealing that one of Earth’s most remote regions is far more seismically active than once believed. The findings…

A new study of the July 2025 Mw 8.8 Kamchatka earthquake found that the rupture extended about 500 km (311 miles) southwest from its epicenter, closely matching the rupture area of the great 1952 Kamchatka earthquake. Researchers say the similarity…

The Atlantic “cold blob” — a persistent cooling anomaly in the subpolar North Atlantic south of Greenland and Iceland — is primarily caused by reduced ocean heat transport into the region rather than increased heat loss to the atmosphere, according…

A 40-year record of solar observations has revealed that structural changes linked to the Sun’s 11-year activity cycle are becoming increasingly concentrated near the solar surface. The finding is based on helioseismic measurements spanning Solar Cycles 22 through 25 and…

During one of the most dramatic climate reversals of the last Ice Age, the Gulf Stream shifted hundreds of kilometers northward, warming waters off Nova Scotia by about 4-5°C (7.2-9°F) and likely disrupting marine ecosystems along eastern Canada, according to…

An 800-year-old diary describing red lights in the skies over Kyoto has helped researchers identify a previously unknown solar proton event that occurred during one of the most active periods of solar activity known from the Medieval era.

Secondary faults beneath the Seattle metropolitan area may rupture more frequently than previously recognized and could represent an underappreciated source of seismic hazard, according to a new study published in GSA Bulletin.

More than 160 years after the M7.9 Fort Tejon earthquake, tectonic stress along Southern California’s two dominant fault systems has reached record levels, according to a new study that reconstructs 1 000 years of earthquake activity across the southern San…

A giant scorpion that lived more than 410 million years ago may have been one of the earliest apex predators on Earth and could have spent much of its life in water, according to a new study published in Palaeontology.…

Scientists have identified a vast fan-shaped basin province beneath East Antarctica that extends under roughly half of the East Antarctic Ice Sheet. The newly recognized structure may preserve evidence of tectonic processes linked to mountain building and the breakup of…

Researchers from the University of Colorado Boulder report what they describe as the first direct evidence that angrite meteorites originated within a large planetary embryo rather than a small asteroid. The findings, published in Earth and Planetary Science Letters on…

NOAA’s Space Weather Observations at L1 to Advance Readiness-1 (SOLAR-1) observatory has entered operational service, becoming the first U.S. satellite dedicated exclusively to continuous operational space weather observations. The spacecraft is stationed at the Sun-Earth Lagrange Point 1 (L1), where…

Earth’s eastern and western hemispheres reflect almost exactly the same amount of sunlight despite being dominated by very different cloud systems, land masses, and ocean basins. A new study has identified a previously unknown planetary symmetry centered on 27° E longitude,…

Noctilucent cloud season is underway across the Northern Hemisphere, bringing one of Earth’s most unusual atmospheric phenomena back to twilight skies. Composed of microscopic ice crystals suspended near the edge of space, these clouds shine with a distinctive silver-blue glow…

Paleontologists have identified a new species of heron like unenlagiid dinosaur named Kank Australis from Patagonia in southern Argentina. Researchers say it may have hunted fish and other aquatic prey in rivers and wetlands about 70 million years ago.

Japanese researchers have identified geological traces in eastern Hokkaido linked to the Chicxulub asteroid impact that struck Earth about 66 million years ago, adding new East Asian evidence to the global record of the event widely associated with the extinction…

A new analysis of geomagnetic observations from 1997 to 2025 shows that the unexpected reversal in Earth’s outer-core flow beneath the equatorial Pacific around 2010 has weakened since 2020, refining scientists’ understanding of one of the most unusual deep-Earth changes…

Astronomers have reported evidence of a thin atmosphere around the small plutino (612533) 2002 XV93 after observing the object pass in front of a distant star on January 10, 2024. The finding, published in Nature Astronomy this month, identifies evidence…