Archaeologists working in an ancient Mayan city have unearthed a mysterious 1,700-year-old altar whose bright decorations and ...

Ancestor worship was important and similar to the Shang dynasty in China and also the ancient Egyptians, at around the same time (1500 BC). Maya households ... calendar and astronomy and their ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Archaeologists ...