- Alexander III of Macedon (Ancient Greek: Ἀλέξανδρος, romanized: Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the ancient Greek kingdom of Macedon. He succeeded his father Philip II to the throne in 336 BC at the age of 20, and spent most of his ruling years conducting a lengthy military campaign throughout Western Asia and Egypt. By the age of 30, he had created one of the largest empires in history, stretching from Greece to northwestern India. He was undefeated in battle and is widely considered to be one of history’s greatest and most successful military commanders.
- The Great Attractor (youtube.com)
No matter where you are, you are always moving. The Earth orbits the sun, and the sun moves round the galaxy. But what is it that makes the galaxy move? That is going to be our topic today. Everything in our local galaxy supercluster, Laniakea, is being dragged towards a very high concentration of mass hidden behind the plane of our galaxy. It has all the ingredients for an epic space mystery, it is the Great Attractor.