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10 Cards in this Set
- Front
- Back
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How big is space?
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Space is ever expanding
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Why is space so cold?
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The lack of oxygen
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Why does space expand?
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The space expands without reason and has about 300 billion years left of expansion.
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How big is the sun?
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The sun expands to 124000 miles
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What galaxy do we live in?
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The sun expands to 124000 miles
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Who were the first people in space?
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American’s where the first to go to space
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Did man really land on the moon?
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The subject has been debated but most likely yes.
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How many galaxies are there?
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At least 100 billion
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Is there life on mars?
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Life on other planets haven’t been proven
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Do stars vary in brightness?
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Yes all stars vary in brightness but most are imperceptible.
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