-
Creation of the universe
13.8 Billion years ago, Big Bang caused the creation of the universe. According to the theory, the universe started as a very dense, very hot state and expanded rapidly and still is doing so today. -
Seconds After Big Bang
10^-6 seconds- universe takes shape
3 seconds- formation of basic elements (hydrogen, helium. lithium) -
13 to 10 billion years ago
Birth of stars and galaxies -
Birth of our Sun
5 billion years before present time -
Silpho and Wirtz
Observed galactic redshifts in sky -
Albert Einstein
Drafts “general theory of relativity” -
Georges Lemaltre
Proposes an expanding model for universe -
Edwin Hubble
Demonstrates the universe is expanding -
Karl Jansky
Discovered radio waves coming from Milky way -
Holmdel Horn Antenna
It is built to help NASA’s project “Echo” and “Telstar” -
Robert Dicke
Theorizes that cosmic background radiation is emanating from the universe -
Arno Penzias and Robert Wilson
They hear a “hum” coming from the Holmdel antenna -
Penzias and Wilson
They conclude noise is coming from outside of the galaxy proving the Big Bang did occur -
Hubble
Hubble telescope launched -
Confirmed
Big Bang confirmed
