Roman Emperor Septimus Severus dies, leaving the Roman Empire in the hands of his two quarrelsome sons, Caracalla and ...

Raised in the Lutheran church, Tycho was led to believe that the earth was the center of the universe, but his carefully ...

The popular belief that European astronomy from the late Middle Ages and early Modern Age was more advanced than that of ...

Learn about the life and scientific contributions of Johannes Kepler, the 17th-century astronomer known for his laws of ...

Thus imagine a stone falling to the ground. Do you conceive the earth, like Aristotle and Tycho Brahe, as fixed or, like Copernicus and Galileo, as moving? Try as you may, you cannot do both at once: ...

Discover the secrets of Renaissance period astronomers Kepler and Brahe in Prague, the stunning city of a hundred spires, and stargaze at the Stefanik Observatory. Discover the city of Stockholm's ...

When atomic bombs struck Hiroshima and Nagasaki in 1945, the blinding light and heat from the explosions left only shadows of ...

Astrology, the belief that the positions of celestial bodies influence earthly events and human lives, has been a pervasive force across cultures and time periods. Learn more about the history of ...

Earlier this month the Mathematics Institute at Uppsala University hosted a conference called Categorification in Algebra and Topology, clearly a theme close to our collective heart. As yet there are ...

Aristotle and Plato – their names conjure up thoughts of stone busts showing serene elderly men with long curly beards. Perhaps these revered Greek philosophers really did look like that at some stage ...