Explain how is venus like earth?

92

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Tell me how long is a year on saturn?

95

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Tell me how many planets are in the new solar system?

197

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Explain how fast is the solar wind?

94

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Tell me how long is it until our solar system ceases to exist?

189

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Explain how do clouds form?

94

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Explain how big is the universe?

122

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Tell me how many moons does neptune have?

124

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Explain how have some stars had time to die since the universe began?

118

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Explain how big is venus?

106

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Explain if gravity only attracts mass and if light does not have mass why does it appear to bend when passing a planet?

93

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Explain how far away from earth, is space?

103

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Tell me how many moons does jupiter have?

104

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Explain how can space expand faster than the speed of light?

101

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Tell me how many black holes are there?

89

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