Saturday, December 15, 2012

Answer to Question 151

A151: A gravastar is an extremely dense, cold, dark, thick-shelled object that contains springy, oddly-behaving space inside it. A gravistar is the remnant of a dying star that has imploded; it has many similarities to a black hole, but emits far brighter X-rays than a black hole. The existence of gravistars is not universally accepted.

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