Wednesday, August 19, 2020

This is when and how the universe is expected to end

I'm telling you guys again, I'm in the wrong business....  scientists sit around all day getting millions of dollars in grants for coming up with the most preposterous theories. For example, just last month, a separate group of experts suggested the universe could be as much as 1.2 billion years younger than the 13.8 billion years old it is widely assumed to be.
Can you imagine? We all thought naively that the world is 13.8 billion years old, but it's really 12.6 billion years old. OMG! What ignoramuses we all were ... that's what happens when you get a bad education ... Now that these "scientists" enlightened us, we can breathe a lot easier ... the world is younger ..whew!
Is there anyone out there that can prove them wrong? Anyone?
Now read below how a scientist found that "white dwarfs will explode in a supernova in the future. As they become denser, these stars will become “black dwarf” stars capable of producing iron in their cores."
In a million years I couldn't come up with these "educated" theories ... all this time I thought, that "white dwarfs" were little white people and "black dwarfs were little black people, who knew? 
I really don't think that the "white dwarf" stars will like it when they find out they will ultimately become "black dwarfs" stars.... the "black dwarf" stars will not be happy when they learn that they will "soon cease to shine."....
I'm telling you...! Maybe it's better than reading about how BLM is destroying the USA as we know it ! 

It’s not expected to happen anytime soon, but one scientist has calculated when the universe will end.
The research, published in the journal Monthly Notices of the Royal Astronomical Society, notes that sometime over 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 fizzle.”
“It [the universe] will be a bit of a sad, lonely, cold place,” the study’s lead author, theoretical physicist Matt Caplan, said in a statement. “It’s known as ‘heat death,’ where the universe will be mostly black holes and burned-out stars.”
In the research, Caplan looked at potential stellar explosions and found that white dwarfs will explode in a supernova in the future. As they become denser, these stars will become “black dwarf” stars capable of producing iron in their cores.
“Stars less than about 10 times the mass of the sun do not have the gravity or density to produce iron in their cores the way massive stars do, so they can’t explode in a supernova right now,” Caplan explained. “As white dwarfs cool down over the next few trillion years, they’ll grow dimmer, eventually freeze solid and become ‘black dwarf’ stars that no longer shine.”
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Since iron can’t be burned, it will accumulate, similar to a poison and trigger the collapse of the star and become a supernova. Caplan estimates the first one 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. If you wrote it out, it would take up most of a page,” Caplan added. “It’s mindbogglingly far in the future.”
Nonetheless, 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 approximately one percent of all stars that currently exist, Caplan pointed out.
The other approximately 99 percent of stars will remain black dwarfs.
The largest black dwarfs will go supernova first, followed by smaller ones, at which time the universe will likely be a giant emptiness, completely unrecognizable.
“It’s hard to imagine anything coming after that, black dwarf supernova might be the last interesting thing to happen in the universe,” Caplain stated. “They may be the last supernova ever. 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. It won’t even be physically possible for light to travel that far.”
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2 comments:

  1. So one scientist has calculated that the universe will end sometime over the next few trillion years.
    Okay, noted. But morning, or evening ?

    ReplyDelete