Editing Big Bang (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Cosmology''' — The study of the large-scale structure and history of the universe.
* '''The Big Bang''' — The rapid expansion of matter from a state of extremely high density and temperature that marked the origin of the universe.
* '''Singularity''' — The initial state of the universe; a point of infinite density.
* '''Cosmic Microwave Background (CMB)''' — The "afterglow" of the Big Bang; faint radiation that fills the entire universe.
* '''Expansion of the Universe''' — The observation that galaxies are moving away from each other (Discovered by Edwin Hubble).
* '''Redshift''' — The stretching of light waves as an object moves away from us, making them appear "redder."
* '''Dark Energy''' — An unknown force that is causing the expansion of the universe to accelerate.
* '''Dark Matter''' — Invisible matter that provides the gravity needed to hold galaxies together.
* '''Inflation''' — A theory that the universe underwent a period of extremely rapid expansion in its first tiny fraction of a second.
* '''Nucleosynthesis''' — The formation of the first light elements (Hydrogen, Helium, Lithium) in the first few minutes of the universe.
* '''Hubble's Law''' — The observation that the farther away a galaxy is, the faster it is moving away from us ($v = H_0 * d$).
* '''observable Universe''' — The portion of the universe from which light has had time to reach us.
* '''Multiverse''' — The theoretical idea that our universe is just one of many.
* '''The Big Crunch / Big Rip / Big Freeze''' — Theories about the ultimate fate of the universe.
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