
How long is the history of the universe compressed into one Earth year? What is the theory of the Cosmic Calendar
The Cosmic Calendar it is one instrument created in the 1970s by the astrophysicist and popularizer Carl Sagan, and revisited by astrophysicist Neil deGrasse Tyson in the documentary Cosmos – A spacetime OdysseyFor orient oneself in the vast times of the universe. Without going into complex astronomical calculations and formulas, today we know that from the Big Bang to today ...








