The Great Pyramid of Giza may hold more than the secrets of its construction—it might encode deep mathematical constants.

It must predate the pyramids, which were built around 4,500 years ago ... the Great Pyramids are aligned so their edges face exactly north, south, east and west. The Khafre pyramid, combined ...

A 'potentially hazardous' asteroid the size of a pyramid will skim past Earth tomorrow ... it is called a meteorite. Discovered 11 years ago, asteroid 2014 TN17 has a highly 'elliptical' orbit ...