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The Big Bang Theory
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Vesto Melvin Slipher
Slipher observes red shifts in the spectra of the galaxies he is studying.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
Einstein
Albert Einstein publishes his theory of relativity, sparking many universal evolutionary theories.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
George Henry Lemaitre
Lemaitre develops simple solution to Einstein's expanding universe equation.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
George Gamow
Gamow develops theory that there is a specific beginning and end to the universe.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
Robert Dicke
Dicke reserches a cooling-off period after the intial big bang explosion.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
NASA Annoucement
NASA makes annoncement that the Cosmic Background Explorer loked billions of light years into space and detected minute tempurature fluctuations. These discoveries led to eliminating one of the flaws in the big bang theory.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
Universe expansion speed
SInce gravity pulls all matter inward toward the universes starting point, scientists always thought universal expansion got slower over time. In 1998, sceintists proved that the rate of expansion was actually larger than at is start.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013. -
WMAP Scientists
Scientists discover new information about the age of the universe, 13.7 billion years old, and the date of the first star generation, 200 million yeras after the big bang.
"Big bang theory." World of Scientific Discovery. Gale, 1999. Science in Context. Web. 12 Dec. 2013.
