• Giant Devonian scorpion identified from 400-million-year-old fossils in Britain

    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. Researchers re-examined the fossil of the arthropod Praearcturus gigas and concluded that it was a giant scorpion rather than a crustacean, resolving a debate that has persisted for more than 150 years.

  • Continent-scale basin system found beneath East Antarctica’s ice sheet

    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 Gondwana.

  • Earth has a second planetary symmetry, maintained by a hidden balance of clouds

    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, revealing a new large-scale feature of Earth’s climate system and a phenomenon that many current climate models fail to reproduce.

  • Noctilucent cloud season begins: How glowing night clouds form near the edge of space

    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 when conditions in the upper atmosphere become cold enough for them to form.

  • Japanese researchers discover Chicxulub impact evidence tied to dinosaur extinction

    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 of non-avian dinosaurs.

  • New analysis sheds light on unexpected reversal in Earth’s molten outer core beneath the Pacific

    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 detected in recent decades.

  • Extreme subsidence in Mexico City exceeds 2 cm (0.8 inches) per month

    Preliminary measurements from the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite mapped parts of Mexico City and surrounding areas subsiding by more than 2 cm (0.8 inches) per month between October 25, 2025, and January 17, 2026, NASA’s Jet Propulsion Laboratory (JPL) reported. JPL attributed the deformation in large part to groundwater pumping and long-term compaction of the ancient lakebed beneath the metropolitan area.

  • Study suggests Earth’s first continents formed through subduction 3.5 billion years ago

    A new study suggests that Earth’s earliest continental crust may have formed through subduction-related processes more than 3.5 billion years ago. Researchers studying ancient rocks from Western Australia found evidence that magmas became progressively wetter and more oxidized during the Paleoarchean, supporting the idea that deep water recycling was already occurring inside the young Earth.