Morning Overview on MSN

Scientists find a “unusual” 30-ft corridor in the Great Pyramid, sealed 4,500 years

For the first time since it was sealed around 4,500 years ago, scientists have peered into a hidden passage inside the Great ...
BBC

Pyramids, cones and spheres

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 ...