Deep below your feet, far beneath the crust and beyond the reach of any drill, lie colossal hidden structures that may have quietly shaped the history of life on Earth. For decades, seismologists have seen strange echoes in earthquake waves hinting at something enormous lurking at the base of the mantle, but no one ...
High above the familiar blue arc we see from the ground, Earth’s is doing a constant, invisible high-wire act. It is thin enough to be fragile, yet complex enough to shape climate, weather, and even the possibility of life itself. In the past few decades, scientists have begun to see this gaseous shell not ...
Every so often in Earth’s deep history, our planet’s magnetic north and south trade places, leaving a barcode of polarity stripes in the seafloor and a trail of mystery for geophysicists. The stakes feel dramatic: this invisible shield deflects much of the solar and cosmic radiation that would otherwise batter our technology and, over ...
Maria Faith Saligumba
