It is not expected to happen at any moment, but one scientist has calculated when the universe will end.
The study, published in the Monthly Notices of the Royal Astronomical Society, notes that sometimes in the “next few trillion years”, when the universe is dead as we know it, stars will continue to explode, not with a giant bang. , but “Very, very slowly fizzling.”
“It [the universe] will be a bit of a sad, lonely, cold place, ”said the study’s lead author, theoretical physicist Matt Caplan, in a statement. “It’s known as ‘heat death’, where the universe will be mostly black holes and burning stars.”
In the investigation, Caplan looked at possible stellar explosions and found that white dwarfs would explode into a supernova in the future. As they get closer, these stars will become “black dwarf” stars that can produce iron in their nuclei.
“Stars less than about 10 times the mass of the sun have the weight and density not to produce iron in their nuclei like mass stars do, so they can not currently explode in a supernova,” Caplan explained. “While dwarves know to cool down over the next few trillion years, they will dimmer, eventually freeze solid and become ‘black dwarf’ stars that no longer shine.”
Since iron can not be burned, it will accumulate, equal to a poison and the collapse of the star trigger and become a supernova. Caplan estimates that the first of these theoretical explosions in about 10 years will happen in power 1100 years. ‘In years, it’s like the word’ trillion ‘almost a hundred times. If you wrote it out, it would take up most of a page, “Caplan added.” It’s mindbogglingly far into the future.
Nevertheless, all the stars that turn into black dwarfs will not explode, just those that are between 1.2 and 1.4 times the mass of the sun, or about one percent of all the stars that are currently exist, Caplan pointed out.
The other about 99 percent of the stars will remain black dwarfs.
The largest black dwarfs will first go supernovae, followed by smaller ones, at which point the universe will likely be a giant void, completely unrecognizable.
“It’s hard to imagine that coming after that, black dwarf supernova is the last interesting thing that can happen in the universe,” Caplain stated. ‘They are perhaps the last supernova ever. Galaxies will have scattered, black holes will have evaporated and the expansion of the universe will have pulled all the remaining objects so far apart that no one will ever explode any of the others. It will not even be physically possible for light to travel that far. ”
Scientists learn more about the state of the universe. In July, a separate group of experts suggested that the universe could be as much as 1.2 billion years younger than the 13.8 billion years old that it is widely assumed.
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