• Sulfur dioxide from 2023 Icelandic eruption traveled 2 000 km (1 240 miles) to Arctic’s Svalbard Islands

    A Chinese research team tracked sulfur dioxide (SO2) from Iceland’s Sundhnukagigar volcano, which traveled over 2 000 km (1 243 miles) to the Svalbard Islands in the Arctic in 2023, causing significant smog. The findings, published in The Innovation Geoscience, documented the long-distance environmental impact of the eruption.

  • Toxic metals pollute 17% of global cropland, threatening food safety

    A new study reveals that 14–17 % of global cropland, roughly 242 million ha (598 million acres), is contaminated with toxic metals, affecting food safety for up to 1.4 billion people. The contamination, driven by metals like cadmium and nickel, poses risks to agriculture and human health worldwide.

  • How humans adapted to increased cosmic radiation during geomagnetic excursion 41 000 years ago

    Around 41 000 years ago, Earth’s magnetic field weakened by up to 90 percent during a geomagnetic excursion known as the Laschamps event. This rare event reduced the planet’s natural shielding against solar and cosmic radiation, exposing the surface to increased ultraviolet energy. A new study combining space weather modeling and archaeological evidence shows that early humans adapted to these extreme conditions through the use of ochre, clothing, and caves, while Neanderthals may have lacked such protective strategies, which may have contributed to their extinction.

  • Signs of life detected on exoplanet K2-18b

    Researchers using the James Webb Space Telescope have detected molecules in the atmosphere of exoplanet K2-18b that may indicate potential biological activity. The analysis revealed the presence of dimethyl sulfide and dimethyl disulfide—compounds that, on Earth, are primarily produced by biological processes.

  • The impact of atmospheric rivers on Antarctic ice sheet

    A recent study analyzing data from 1980 to 2020 found that atmospheric rivers (ARs), though infrequent, have accounted for up to 70% of extreme snowfall events in East Antarctica since the 1980s, significantly impacting the continent’s ice sheet mass balance.

  • Supermassive black hole Ansky awakens with record-breaking X-ray flares

    Previously dormant supermassive black hole Ansky in galaxy SDSS1335+0728, approximately 300 million light-years away in Virgo, started emitting exceptional X-ray flares in late 2019. These quasiperiodic eruptions last 10 times longer, shine 10 times brighter, and release 100 times more energy than typical black hole bursts. ESA’s XMM-Newton and NASA telescopes have recorded 165 such events since February 2024.

  • Andromeda’s galactic imbalance stirs debate in cosmology

    A new study published in Nature found that Andromeda’s satellite galaxies are stacked on one side—an unusual imbalance that challenges the Lambda Cold Dark Matter (ΛCDM) cosmological model. The finding is stirring questions about the universe’s blueprint and suggests our cosmic models may be due for a rewrite.