Greek astronomer Claudius Ptolemy, who lived in Egypt, built upon Babylonian knowledge in his geocentric model of the ...

The tradition of star chart mapping in Africa extends far back in history, suggesting that ancient African cultures were keen ...

These festivities may be what's popular in modern times, but they were also practiced in ancient ones ... On that day, the star of Sirius was said to have risen from below the eastern horizon.

This week’s first small-telescope target is Sirius B, the companion ... He writes that the term is from Siris, an ancient name of the Nile. When this star became visible to the Egyptians and ...