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Astronomy > The Big Bang Theory > Flashcards

The Big Bang Theory Flashcards

0
Q

Galaxy spectra

A

A galaxy spectra can tell astronomers how fast the galaxy is moving and if it’s moving towards or away from our galaxy

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1
Q

Why is the fact that galaxies move important to scientists?

A

Astronomers use information about how galaxies are moving in order to study how and when the universe formed

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2
Q

Hubble

A

Edwin Hubble observed that the majority of galaxies are moving away from us and away from each other at all times

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3
Q

Singularity

A

The small, hot, dense point at which the universe was once

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4
Q

Timeline of the universe

A
  1. Big Bang
  2. Inflation
  3. Dark Ages
  4. Structure Formation
  5. Our Sun forms
  6. The Earth forms
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5
Q

Cosmic Microwave Background (CMB)

A

Radiation that fills our universe and is detected in every direction

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Astronomy (3 decks)

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