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Zork

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Zork
Does the Earth generally increase in size, through collection of space matter, or decrease due to 'stuff' being released into space?
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Zork
How far would a tennis ball travel through space if thrown in space by an average person? ( Given that energy is finite)
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Zork
When the Earth ends , will the Universe end? This could mean , is it all in our minds, or, is there anything else to perceive it's existence, or anything else...............

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