Black hole

:This article is about an object in astrophysics. For other uses, see Black hole (disambiguation).

Alternative models

Several alternate models, which behave like a black hole but avoid the singularity, are considered. But most researchers judge these concepts artificial, as they are more complicated but don't give near term observable differences from black holes (see Occam's razor). The most prominent theory is the Gravastar.

Related Topics:
Occam's razor - Gravastar

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In March 2005, physicist George Chapline at the Lawrence Livermore National Laboratory in California proposed that black holes do not exist, and that objects currently thought to be black holes are actually dark-energy stars. He draws this conclusion from some quantum mechanical analyses. Although his proposal currently has little support in the physics community, it was widely reported by the media (report in Nature News) (original article).

Related Topics:
George Chapline - Lawrence Livermore National Laboratory - California - Dark-energy star

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Among the alternate models are clusters of elementary particles (e.g., boson stars), fermion balls, self-gravitating, degenerate heavy neutrinos, and even clusters of very low mass (

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