Google Earth has revealed some strange things over the years, but some discoveries still have no clear explanation. From a mysterious shape in Death Valley to ancient circular structures in the Middle ...

A Canadian exploration team searching off Cuba’s western coast found something they did not expect: organized stone structures nearly 2,000 feet underwater. Sonar scans showed shapes that looked like ...

Egypt’s Pyramids of Giza were built to endure an eternity, but how remains one of the ancient world’s greatest mysteries. Here’s what archaeologists know. The Pyramids of Giza rise behind Egypt’s ...

In the world of archeology, few tools have revolutionized the field as much as ground-penetrating radar (GPR). This geophysical technique uses radar pulses to image the subsurface. Similar techniques ...

Ever since humans began building, they’ve been building up. Throughout the millennia, our constructions have reached higher and higher into the sky, spurred by various motivations: religion, democracy ...

The volume of a 3D shape is the amount of space inside it. Volume is measured in cubic units such as cm³ and m³. The volume, or capacity, of liquids is measured in millilitres or litres. The surface ...

City of Tucson rainwater-harvesting rebates, criticized before for not saving water, now save hundreds of homeowners an average of 10 percent in water use, officials say. Tucson Water says its ...

A new phase of the natural El Niño weather pattern could begin in a matter of weeks, the UN has warned, boosting temperatures on a planet already under strain from climate change. The World ...

The Mediterranean diet emphasizes fruits, vegetables, whole grains, and healthy fats. It may help manage weight, support heart health, and reduce diabetes risk. The diet focuses on whole foods rather ...