History Of Universe In One Year
Cosmic calendar from the dragons of eden carl sagan.
History of universe in one year. The event birthed the oldest known star in the universe methuselah located about 190 1 light years away from earth. The cosmic calendar is a scale in which the 13 7 billion year lifespan of our universe is mapped onto a single year. Let us look at the calendar in a bit more detail.
The cosmic calendar is a method to visualize the chronology of the universe scaling its current age of 13 8 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science. In this visualization the big bang took place at the beginning of january 1 at midnight and the current moment maps onto the end of december 31 just before. This chronological arrangement was done by famous astronomer carl sagan.
In this mapping the big bang took place on january 1st at 12 a m while the present moment is 12 p m. The chronology of the universe describes the history and future of the universe according to big bang cosmology. The universe in one year was inspired by the late astronomer carl sagan 1934 1996.
This strange star has caused quite a bit of trouble for astronomers in the past because estimates had at one point put its age at around 16 billion years well before the birth of the universe which doesn t make sense at all. Sagan was the first person to explain the history of the universe in one year as a cosmic calendar in his television series cosmos. The first year of the universe in this regard has been a remarkable one for humanity for earth and for the milky way and here we stand on the precipice of millions more.
The earth s environment was chaotic. The earliest stages of the universe s existence are estimated as taking place 13 8 billion years ago with an uncertainty of around 21 million years at the 68 confidence level.
