Stars vanish from night sky as light pollution from cities, towns grows

For most of human history, the night sky has been a shared inheritance, a source of wonder. Now, more than a billion children ...

Humanity’s Oldest Geometry Was Carved Into Ostrich Eggs 60,000 Years Ago

At multiple archaeological sites across southern Africa, researchers have uncovered hundreds of unusual fragments of ostrich eggshell. These pieces date back more than 60,000 years and were engraved ...