Lost notes reveal Galileo closely studied the ancient Greek astronomer Ptolemy, offering fresh insight into his early ...

In January, while examining ancient texts at Italy’s National Central Library of Florence, historian Ivan Malara found an ...

What a wonderful question! The simple answer is that they relied on centuries of previous observations. Remember, even computers have to be programmed with the right data to produce future times of ...

Peering into the past, we find that our ancestors held a surprisingly advanced understanding of the stars and constellations. Their knowledge, as revealed in ancient texts, often rivals our modern ...

More than a thousand years ago, astronomers from the Maya civilization developed one of the most sophisticated time-keeping systems in the ancient world—a system that could predict solar eclipses for ...

Before telescopes, ancient Greek astronomers relied on naked-eye observations of the night sky to understand the universe around them. The meticulous star catalog belonging to one of the best of these ...

"The Ancient Astronomers of Timbuktu takes us from the edge of the Sahara Desert, to Addis Ababa in the East and Cape Town on the Southern tip of Africa. We follow investigative and collaborative ...

Long before starlight filled the cosmos for the first time, the young universe may have been simmering, according to a new study. The findings suggest that about 800 million years after the Big Bang, ...