Earth In The Universe

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Earth In The Universe

Evidence For The Big Bang

Origin And Age Of The Universe

Universe: All matter and energy

Universe is 13.7 billion years old

Universe started with big bang

The explosion that started the universe

Evidence

Shift of light from different galaxies

Mostly red shift (Universe is expanding)

Blue shift=Shorter wavelengths

Red shift=Longer wavelenghths

Cosmic background radiation

Topic Overwiew

Celestial Object: Anything visible above Earths atmosphere

6000 visible with unaided eyes