More cards in this set

Card 6

Front

What does a greater red-shift mean?

Back

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Card 7

Front

Why is the universe expanding?

Back

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Card 8

Front

What does red-shift give us evidence for?

Back

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Card 9

Front

What is the Big Bang theory?

Back

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Card 10

Front

What is cosmic microwave background radiation?

Back

Preview of the front of card 10