More cards in this set

Card 26

Front

would more distant galaxies have greater or lesser red-shift than nearer ones

Back

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Card 27

Front

what is seen when a galaxy is moving towards us

Back

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Card 28

Front

what theories are there about the future expansion of our universe

Back

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Card 29

Front

what has been observed recently about the expansion of our universe

Back

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Card 30

Front

what is dark matter

Back

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Card 31

Front

what is dark energy

Back

Preview of the front of card 31