For over a century, researchers have proposed different methods used by the ancient Egyptians to align the pyramids.
20 Feb 2018 12:29 PM GMT
Summer solstice: 10,000 watch sunrise at England's famous Stonehenge.
22 Jun 2019 6:14 AM GMT
Greek astronomer and mathematician unravels the mystery of how an ancient Greek astronomer got the size of the Earth...
16 April 2017 1:12 AM GMT