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To: Ichneumon; snarks_when_bored
It sounds to me that they're not actually *replacing* the idea of black holes with something else that's not a black hole, what they're really saying is that the physics of black holes might be different than previously thought, especially "inside" the black hole.

From what I read, the idea says that the thin shell of material forms just outside of where the event horizon would be. (This idea, which replaces black holes with objects called gravastars, was formulated by Mazur/Mottola some time around 2002.) If this phenomenon is true, it prevents a black hole from forming, but just barely. The surrounding space-time would still apparently behave just like a black hole outside the event horizon (but there would be stronger ejected matter jets & x-ray emission than in a standard black hole).

I have to honestly say that I don't understand how this would solve the dark matter problem any more than saying it is tucked away into black holes, though. (Primordial black holes would have to evaporate into observable photons by Hawking radiation, whereas these entities don't, I'm guessing...)

Some older links on the matter:

Los Alamos researcher says 'black holes' aren't holes at all

Thick-Skinned Gravastars Vie to Replace Black Holes, in Theory

Is black hole theory full of hot air? (Typically misleading title courtesy of CNN)

Great article, snarks - always fun to discuss true controversies in science.

46 posted on 03/10/2006 7:14:20 AM PST by Quark2005 (Confidence follows from consilience.)
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To: Quark2005

Thanks...and thanks for the links...


52 posted on 03/10/2006 7:45:57 AM PST by snarks_when_bored
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