How many planets are there? As with the discovery of Uranus, the answer depends on who you ask. Detail from Joseph Wright of ...

There are several ancient monuments proving that our predecessors possessed knowledge of astronomy and used it for practical ...

Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire. Much of medieval astronomy and ...

When it comes to Greek mythology, myth and legend, fairy tales and fantasy, can be just as informative as historical facts.