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 Nature Satellite images show how penguins’ diets are changing in response to Antarctic climate change Casey Youngflesh, Clemson University The color of penguin poop, as seen from space, is offering a new window… byCasey YoungfleshSeptember 9, 2026