Monday, July 28, 2014

Mysterious black holes may be exploding into ‘white holes’

Reuters / NASA

A new scientific theory suggests that when black holes reach the end of their lifespan, they explode into “white holes” and release all of their matter into space.

If true, the theory could help put to rest the debate over whether or not black holes actually destroy the matter they end up devouring.
 
As noted by Albert Einstein’s theory of relativity, when a dying star ends up collapsing under its own weight, at some point the collapse becomes irreversible, resulting in a black hole that consumes light and anything else within its surrounding area. Although Vice noted that black holes do slowly leak radiation over time – ultimately draining the black hole completely – this doesn’t account for all the other matter that the dying star has consumed. 

Since quantum theory does not allow for the possibility that information can be lost, though, two researchers from France’s Aix-Marseille University believe they’ve discovered an explanation for this so-called “information paradox.” According to physicists Carlo Rovelli and Hal Haggard, a black hole eventually reaches a point where it cannot collapse any further and the internal pressure begins to push outwards. This essentially turns the black hole inside out and expels everything it once consumed back into space. 

Notably, the scientists believe that these white holes are created not long after the black hole’s original formation, and we humans can’t see it because gravity dilates time and makes the black hole’s lifespan seem to last for billions or trillions of years. Their current calculation is that it only takes a few thousandths of a second for a black hole to turn into a white hole.
 
“Importantly, the process is very long seen from the outside, but is very short for a local observer at a small radius,” the researchers wrote in a paper on the subject, according to Vice.

For the rest of the story: http://rt.com/news/175436-black-holes-exploding-white-holes/

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