Most people have heard the term “black hole” and are vaguely aware of things like “event horizons”. Some have heard of a black hole’s “central singularity”. This is what happens to the core of a very large star that runs out of fuel and collapses under its own gravity. The core (perhaps) shrinks to zero size, meaning that the density of the core matter may become infinite 0 hence the term singularity.Event horizons are a direct consequence of Einstein’s theory of general relativity. The reason why no events on the inside of an event horizon can be observed from the outside is that gravity is so strong there that nothing can escape from within, and that includes light and any other form of signal.The event horizon effectively “dresses” the singularity at the center of the black hole and nature is apparently very reluctant to get rid of these “clothes”. In 1969, Sir Roger Penrose proposed the cosmic censorship hypothesis, which was also stated as: “nature abhors a naked singularity”.So how can a naked singularity possibly be formed and how does nature prevent it from happening? In 1963 Roy Kerr, a native New Zealander, discovered an exact solution to Einstein’s equations […]

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