At first blush, the structures in New Mexico built by the Chacoan people and those in Ohio traced to the Hopewell culture bear little resemblance. The Chacoans, accommodating the arid desert of their ...

ESA's Proba-2 satellite captured a stunning 'ring of fire' annular solar eclipse from orbit — a view few on Earth could see.

A newly discovered Spinosaurus species from Niger features a dramatic crest never seen before, raising fresh questions about its semi-aquatic lifestyle and the mysterious purpose of its striking skull ...