A hand-powered clock from 2,000 years ago revealed a big secret with new astronomy research. The Antikythera mechanism's calendar ring likely followed the lunar year.

New Antikythera mechanism analysis challenges century-old assumption Physicists drew on statistical techniques used to analyze gravitational waves.

Here's what researchers know about the ancient Antikythera mechanism, a celestial tracking device discovered in a shipwreck off a Greek island.

The Antikythera mechanism is an ancient mechanical analog computer (as opposed to digital computer) designed to calculate astronomical positions. It was discovered in the Antikythera wreck off the ...

Scientists used an analysis technique from gravitational wave astronomy to suggest the Antikythera mechanism had a lunar calendar.

Antikythera Mechanism (Image credit: Wikipedia Commons) Divers pulled the first fragments of what became known as the Antikythera mechanism from a shipwreck in 1901.

The Antikythera mechanism was discovered over 100 years ago. Researchers think they solved the ancient computer's mystery with statistical techniques.

The Antikythera mechanism is an ancient Greek analog device dating back to between 100 and 200 BC that is considered the world's first known computer.

A quick dive for sea sponges resulted in the discovery of a mysterious, surprisingly complex machine often referred to as the world's first analog computer.

Regardless, the Antikythera mechanism proves that the ancient Greeks used complex arrangements of precisely cut wheels to represent the latest in scientific understanding.