"Would a bird be able to fly in zero-gravity, or does it need gravity to fly? Have any experiments been done with live birds in outer space?"
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Question
So the sun is hot and burning............ then where is all the smoke and pollution going ? Also why is the smoke not visible. ?~~ Thanks
The Sun is not burning. The Sun is a star, a million times bigger that Earth, and it generates its energy from nuclear fusion in its core. I recommend that you get an introductory book on astronomy or look at the Wikipedia entries on "star" and "sun". David Morrison
NAI Senior Scientist
December 10, 2007
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