By imagining Earth at the center of a celestial sphere, he used a coordinate system similar to latitude and longitude, which had recently been devised, to measure the precise positions of the stars.

What are the lucky signs of the day? Mantra for the sign of Libra. The stars speak of love and work for the signs and more.

Gaze at the night sky enough, and you’ll begin to find all kinds of geometric patterns among the stars. Points are easy; so are lines connecting two ...

This is the impressive moment a Chinese man lifted a 182kg iron block at a tourist spot in China. Footage shows the local ...