Alright, so here’s the mystery: in Costa Rica, there are these giant stone spheres scattered around, and no one knows for sure who made them. They’re perfectly round and date back to ancient times, ...

Around 1.4 million years ago, early human relatives crafted enigmatic stone "spheroids" in the Middle East in deliberate attempts to make perfect spheres, a new study finds. The finding shows the ...

An analysis of 150 round, baseball-sized stones found at a site where early humans lived 1.4 million years ago shows that they were intentionally knapped into spheres. This rules out the idea that ...

Archaeologists working in the Amazon have uncovered sealed stone spheres that contain carefully arranged human bones, but the remains inside do not appear to belong to single individuals. Instead, ...