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 Math and the Sciences Molecules found in Martian rock hint at ancient life – new study Kevin Olsen, University of Oxford A new study of carbon-based molecules in a Martian rock offers new hints… byKevin OlsenMarch 2, 2026