Leap seconds have helped keep clocks synchronized with Earth’s rotation, but their time is now over – here’s why
300 glaciers have disappeared from the American West since the mid‑20th century – the survivors have a few things in common
Read More 4 minute read Earth Are earthquakes becoming more common? Here’s what the numbers say Meghan S. Miller, Australian National University and Allen Husker, California Institute of Technology Whenever there’s a series of… byMeghan MillerSeptember 3, 2026