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

The climate change movement has managed to closely associate themselves with the left of the political spectrum, producing a ...

since it allowed the scientist and historian Claudius Ptolemy (100-175 CE) to provide for modern scholars a fixed date in history on which our conceptions of ancient years can be made accurate.

Astronomers, both professional and amateur, are obsessed with stellar magnitudes. For professional astronomers, stellar ...