The most commonly accepted scientific theory of how the universe formed.

• The Big Bang Show

• The Big Bang Theory

• The Electromagnetic Theory

• The Steady State Theory

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The third planet from the Sun.

• Mars

• Saturn

• Venus

• Earth

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The galaxy containing the Sun and its solar system, along with millions of other stars in a spiraling pattern.

• Andromeda

• Whirlpool

• Cygnus A

• Milky Way

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_________________________ a branch of astronomy that focuses on the physical properties of stars and other celestial bodies, as well as the physical laws of the universe.

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A shift of light wavelengths towards the blue end of the electromagnetic spectrum that takes place when a light source is moving towards an observer (Earth).

• Rainbow

• Blue Shift

• Visible Light

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Weak radiation in space that is left over from the first stages of the Big Bang that theoretically created the universe.

• Cosmic Background Radiation

• Static

• Singularity

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The study of the origin, history, and current state of the universe, based on observation and the use of theoretical models.

• Astrophysics

• Astronomy

• Cosmology

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_____________________________ is the full range of frequencies and wavelengths of electromagnetic waves.

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A group of solar systems, dust, and gas held together by gravity, usually revolving around a black hole

• A Galaxy

• A Planet

• The Universe

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The distance light travels in a vacuum in one year; about 6 trillion miles.

• Dark Year

• Light Year

• A journey

• To Infinity and Beyond

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