An ancient book on astronomy from the 1500s sold for more than £10,000 ($12,200), as a "private international buyer" triumphed over intense competition at a U.K. auction. The Castle of Knowledge by ...

The Greek astronomer Hipparchus, who lived around 120 BCE, usually gets credit for discovering the equinoxes and their relationship to the zodiac constellations. But in a controversial new study, ...

ATHENS, Greece — When you’re trying to fathom a mangled relic of very old hi-tech, it helps to have the manufacturer’s instructions. For more than a century since its discovery in an ancient shipwreck ...

How did Egyptians know how to build the pyramids? Ricardo Liberato/wikimedia, CC BY-ND Ever since humans could look up to see the sky, we have been amazed by its beauty and untold mysteries. Naturally ...

Astronomers are exploring what might be described as the first astronomical observing tool, potentially used by prehistoric humans 6,000 years ago. They suggest that the long, narrow entrance passages ...

A new analysis of the 6,000-year-old stone circle known as Rujm el-Hiri (also Gilgal Refaim) in Golan Heights suggests that it was not built to observe the heavens. When you purchase through links on ...

Hidden in a museum’s archives for decades, an ancient astrolabe recently got a closer evaluation in which experts discovered that etched inscriptions on the device showed signs of scientific exchange ...

Researchers have discovered what is thought to be the first known map of the night sky, written over 2,000 years ago. The map was discovered by scholars studying Christian texts written on an old ...

“Mayan calendar specialists anticipated solar eclipses by correlating their occurrences with dates in their 260-day ...

An ancient astronomy calculator appears to show the four-year cycle of the early Greek competitions that inspired today's Olympic Games. Newly uncovered inscriptions on the 2,100 year-old device ...