• Marine cores record Cascadia megathrust earthquakes followed by near-simultaneous San Andreas fault rupture

    A new study published recently in Geosphere finds that some of the largest earthquakes along the Cascadia subduction zone may have triggered nearly simultaneous ruptures on California’s San Andreas fault. The discovery suggests that the “really big one” in the Pacific Northwest could cascade southward, affecting much of the U.S. West Coast in a single sequence.

  • Twin 15th-century eruptions plunged the planet into decades of cold

    A new analysis of Antarctic ice cores reveals that two volcanoes—Kuwae in Vanuatu and a yet-unidentified Southern Hemisphere volcano—erupted almost simultaneously around 1458–1459 CE, releasing sulfur and ash that triggered one of the coldest decades of the last millennium.

  • South Atlantic Anomaly, weak spot in Earth’s magnetic field, expanding steadily since 2014

    New data from the European Space Agency’s Swarm mission show that the South Atlantic Anomaly, a weak region in Earth’s magnetic field over the South Atlantic Ocean, has expanded steadily since 2014, now covering nearly 1 % of the planet’s surface. The 11-year record marks the most detailed satellite observation of the field’s uneven weakening to date.

  • ESA’s Mars orbiters record interstellar comet 3I/ATLAS in once-in-a-lifetime encounter

    The European Space Agency’s (ESA) ExoMars Trace Gas Orbiter (TGO) and Mars Express spacecraft recorded images of interstellar comet 3I/ATLAS on October 3, 2025, from about 30 million km (18.6 million miles) away, marking the closest observation of the object from any spacecraft so far.

  • Gaia discovers giant stellar wave rippling outwards from Milky Way’s center

    ESA’s Gaia mission revealed a massive stellar wave rippling outwards from the center of the Milky Way’s disc and spanning up to 65 000 light-years. The discovery could reshape how astronomers understand the forces shaping stars and gas on galactic scales.

  • Scientists uncover the mystery of toxic “halo” barrels off the Los Angeles coast

    Scientists have found that the toxic DDT barrels dumped off the coast Los Angeles, California, have been leaking alkaline waste into the ocean floor. This has drastically changed the ocean floor environment around the barrels, resulting in the ghostly halos around the barrels and creating conditions similar to deep-sea hydrothermal vents and alkaline hot springs.