La teoria dell’impatto gigante venne proposta negli anni Settanta dall’astronomo statunitense William Kenneth Hartmann, sulla base di un’ipotesi individuata nel 1946 dal geologo canadese Reginald Aldworth Daly, e oggi è comunemente accettata dalla NASA e da tutta la comunità scientifica. Le prove a sostegno della teoria dell’impatto riguardano la... See more

The Moon is leaving us because of the gravitational conversation between it and the Earth: the ocean tides. The drag they cause slows down the planet’s spin rate. Because gravity binds the Moon and the Earth, as the Earth loses angular momentum, the Moon overcompensates in response; as it speeds up, it begins slipping out of our gravitational grip,... See more

Plato was a firm believer in the notion of inexact cycles of history, which he thought were closely connected with astral events such as the conjunctions of planets. Believing that circles were perfect emblems of the divine, he argued that every process would eventually return to its starting point. History would cycle through golden ages and... See more