• First-of-its-kind deep-Earth conductivity map reveals ancient continental fragments beneath the United States

    ByRishav Kothari

    A first-of-its-kind continent-scale conductivity map made using over 1 700 magnetotelluric stations deployed across the United States has revealed buried tectonic fragments beneath eastern North America, allowing researchers to reconstruct the continent’s deep electrical structure while exposing conductive regions linked to ancient continental collisions, mineral systems, and geomagnetic storm hazard propagation.

  • Heat waves and cold waves increase risk of heart attacks and other cardiovascular issues

    ByRishav Kothari

    A study of more than 8 million people found that heat waves trigger immediate increases in cardiovascular events, while cold waves produce delayed effects over several days. The analysis, covering 2011 to 2020, recorded significant increases in cardiovascular deaths and major adverse events under both temperature extremes.

  • Ancient Mesoamerican builders shaped a cosmic city in Mexico 3 000 years ago

    ByReet Kaur

    Archaeologists in southeastern Mexico uncovered a vast ceremonial complex at Aguada Fénix, dating to about 1 000 B.C. The site measures nearly 1.4 km (0.9 miles) long, 400 metres (0.25 miles) wide, and 9–15 m (30–50 ft) high, making it the oldest and largest known monument in the Maya region.