Research claims universe to 'fizzle' out slowly, not end as big bang

Research claims universe to 'fizzle' out slowly, not end as big bang
Research headed by US theoretical physicist Doctor Matt Caplan has calculated the slow "fizzle" out of the universe.
Published in the Monthly Notices of the Royal Astronomical Society, the research claims we will not go out with a bang, but rather a "very, very slow fizzle".
"It's known as 'heat death,' where the universe will be mostly black holes and burned-out stars," Dr Caplan said in a statement.
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An artist has depicted a dark brown dwarf, similar to the black dwarfs Dr. Matt Caplan predicts will form in the distant future. (NASA/JPL-Caltech)
"It will be a bit of a sad, lonely, cold place."
The research says "white dwarf" stars will explode in a supernova in the far future.
Supernovas occur when internal nuclear reactions produce iron at the star's core.
As white dwarfs cool down, they'll grow dimmer and eventually freeze solid into "black dwarfs".
This production of iron over a few trillion years will cause an accumulation of the metal similar to a poison, causing the star to collapse and become a supernova.
It's estimated the first of these theoretical explosions will happen in about 10 to the power 1100 years.
"In years, it's like saying the word 'trillion' almost a hundred times," Dr Caplan said.
He calculated that the largest black dwarfs will explode first.

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However not all black dwarfs will explode, only those between 1.2 and 1.4 times the mass of the sun, which may account for as many as 1 per cent of stars the exist today.
"It's hard to imagine anything coming after that, black dwarf supernova might be the last interesting thing to happen in the universe," Dr Caplan said.
"Galaxies will have dispersed, black holes will have evaporated, and the expansion of the universe will have pulled all remaining objects so far apart that none will ever see any of the others explode."