Seleucus of Seleucia was an ancient astronomer who defended heliocentrism, arguing that Earth orbits the Sun and rotates on ...

Cleostratus was a truly pioneering Greek astronomer who lived on the small Aegean island of Tenedos in the 6th century BC.

The Pleiades, Ptolemy's Cluster, the Large Magellanic Cloud — here's how to center the sky's brightest deep-sky wonders in ...

Despite centuries of efforts to map our planet precisely, our view of the world will always be political and imperfect.

This so-called Geocentric model was the construction of famous Greek mathematician, astronomer Ptolemy. The model, though invaluable in helping to predict the positions of the stars and planets ...

In the chaotic aftermath of Mongol expansion in the mid-13th century which had left the Abbasid capital of Baghdad in ruin, a new centre of learning soon came to the forefront. Ironically it was the ...

The conjecture that the Irish, like the other inhabitants of the British Isles are of Hebrew extraction has for many ...

One of the most fascinating astronomical phenomena is the blood moon, an event that occurs during a total lunar eclipse when the Moon takes on a reddish hue. This celestial spectac ...