Mystery of “Mostly Harmless” ​For many years, hikers along the Appalachian Trail frequently encountered a gentle soul known ...

High in the mountains that separate northern Portugal and Galicia, dozens of stone mounds have stood silently over the ...

The vast majority of forest restorations contain just one tree species—leaving them vulnerable to pests like the emerald ash ...

Recently, a cheerful 100-year-old message in a bottle was found on the south-west coast of Australia. In it, a world war one ...

For the last 80 years, the theory of quantum electrodynamics (QED), which describes all electromagnetic interactions, has ...