The big bang theory

Redshif: There are several main pieces of evidence that support the Big Bang theory. One is the fact that the universe is expanding, proven with something called red shift. The second is something called cosmic microwave background radiation. http://study.com/academy/lesson/evidence-for-the-big-bang-theory-background-radiation-red-shift-and-expansion.html

Cosmic microwave background: The CMB is a snapshot of the oldest light in our Universe, imprinted on the sky when the Universe was just 380,000 years old. It shows tiny temperature fluctuations that correspond to regions of slightly different densities, representing the seeds of all future structure: the stars and galaxies of today. https://en.wikipedia.org/wiki/Cosmic_microwave_background

Elements in the universe:

Galactic evolution

The sun is merely one of billions of stars in the galaxy. Over time, as our instruments and methods improved, we came to realize that the Milky Way itself was merely one of billions of galaxies that make up the Universe. http://www.universetoday.com/30713/galaxy-evolution/

Appreciate

Credits:

Created with images by Sarah G... - "Atoms" • NASAblueshift - "Abell 2218" • rmforall@gmail.com - "#36. astroHUDFIR2004-07-b-full_tifcb" • wildrosetn39 - "Douglas Days7336.jpg" • NASAblueshift - "M31"

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