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### Distances in relation to other galaxies Because of the expanding universe, distances in relation to other galaxies just increases. ### In the big bang theory, matter dilutes as the universe expands. ### The universe started as a "singularity" The universe started as a "singularity" - an area...

### Distances in relation to other galaxies Because of the expanding universe, distances in relation to other galaxies just increases. ### In the big bang theory, matter dilutes as the universe expands. ### The universe started as a "singularity" The universe started as a "singularity" - an area predicted to be in the core of a black hole with very high temperature and density. ### The intense heat resulted to formation of matter and antimatter particles that were destroyed every time they collide with each other. ### Nucleosynthesis Nucleosynthesis is the formation of elements such as H and He. Presence of these elements led to the formation of stars and galaxies. The presence of stars led to the formation of other cosmic bodies such as planets, comets and asteroids. ### Evidences that support the Big Bang theory The expansion of the universe Observable cosmic background radiation The high amount of light elements (H and He) The presence of distant galaxies with redshifts The formation of stars and galaxies

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