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age 36
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Dec
16
revised Doesn't gravity attract objects in space until they collide?
added 8 characters in body
Nov
21
revised How can only 1 magnetic pole of the Sun change at a time?
added 625 characters in body
Nov
21
revised Doesn't gravity attract objects in space until they collide?
added 15 characters in body
Nov
21
revised Can I see comet ISON from Saudi Arabia?
deleted 1 characters in body