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Big Bang Is Universal Expansion
- The Big Bang was not an explosion in space but the rapid expansion of space itself.
- Matter and energy were once compressed in a dense and hot state that expanded to form the universe.
Universe Origin Singularity
- The universe started as an incredibly dense and hot singularity smaller than an atom.
- This singularity contained all the matter and energy that now make up the entire universe.
Hubble Discovers Expanding Universe
- The Doppler effect combined with light spectrum analysis revealed stars moving away from us.
- Edwin Hubble showed the universe is expanding, fundamentally changing our understanding of space and time.