An international conference on the origins of galaxies pays tribute to the pioneering scientific cooperation between Muslims, ...

According to British astronomer Chris Kitchin, Hydra dates to at least the time of Ptolemy’s Almagest in AD 145, but may go back even further to the ancient Babylonians circa 2000 BC.

Difference Engine A numerical table is a tool designed to save the time and labor of those engaged in computing work. The ...

The Antikythera Mechanism, widely believed to be the world’s first computer, has had a lasting impact on scientists across ...

Nor was he alone in taking such a route: works such as Ptolemy’s Almagest, fundamental for the medieval study of the heavens, seemed to inhabitants of Christian western Europe easier to understand ...

For more than two thousand years, people have mapped the stars. But a new study claims one of the world’s oldest surviving ...

Berenice was the queen of Egypt around 200 B.C. and was deeply in love with her husband, the famous Pharaoh Ptolemy III. In those days, there were many fierce battles, but an upcoming battle ...

But that original catalog is lost to time, and we know of it only thanks to the writings of later scientists such as Ptolemy, who created his own star catalog around 150 A.D. and attributed an ...

Several Greek and Roman geographers thereafter, including Ptolemy in the second century, referred to the Persian Gulf or Persian Sea. While no Greek manuscripts of Ptolemy’s atlas Cosmographia ...