Big Bang Theory
What is the Big Bang? |
The Big Bang is a scientific theory about how the universe started, and then made the groups of stars, which are called galaxies that we see today.
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Big Bang Theory & The Universe |
The universe began as very small, hot and dense, without any stars, form, or structure. About fourteen billion years ago, space expanded very quickly (thus the name "Big Bang"), resulting in the formation of atoms, Eventually, the atoms led to the formation of galaxies, and the galaxies contained billion of stars. The universe is still expanding today, but getting colder as well.
MatterFirst of all, let me ask a question -- Do you know what is matter?Where does it exist?
Matter is everything around you. It is anything that has mass and takes up space. It began with the Big Bang. It was formed as the universe expanded and cooled. |
Light Spectra |
The light spectra is part of the electromagnetic energy. The electromagnetic spectrum is the category of all possible frequencies of electromagnetic radiation. A piece of evidence that supports the big bang theory is cosmic background microwave radiation. The electromagnetic radiation which was present shortly after the big bang is now observed as background microwave radiation.
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