(Associated Press) Comet ISON is teasing the solar system as it dances with the sun and it's giving astronomers mixed signals.
Will it meet a fiery death - or survive - when it whips around the sun on Thursday?
The icy comet will be only about 1 million miles away from the sun's super-hot surface during its close encounter on Thanksgiving. On Monday, it looked like it was about to die even before it got there. On Tuesday, it appeared healthy again.
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