The end of everything: 5 options for how our universe could disappear


    The end of everything: 5 options for how our Universe can disappear

    Everything comes to an end and scientists believe that the death of our Universe may come even earlier than we think.

    < p>Our Universe appeared 13.8 billion years ago as a result of the Big Bang. It began to expand, the matter in it began to cool down and the first stars and galaxies appeared. But the universe is still expanding, and scientists believe that a mysterious dark energy is behind this process. But can such a large-scale catastrophe happen that the Universe will disappear? Scientists believe that this can happen and this event will happen much earlier than everyone assumes. The New Atlas edition has collected 5 popular theories that talk about how and when our Universe may disappear. All of these hypotheses have a connection with the Big Bang in their name, since it will really be the Big Death.

    The end of everything: 5 ways our universe could end

    The Great Freeze< /h2>

    One of the theories of the death of the universe, called the Great Freeze, suggests that dark energy will forever contribute to the expansion of the universe. But in the end, a slow death awaits her, which will stretch over a period of time that is even difficult to imagine. According to theory, this number of years can be represented as a unit followed by 100 zeros.

    Within a few trillion years, stars and galaxies will begin to disappear as they come to the end of their evolutionary development. As the Universe expands, the gas and dust will become so rarefied that they will no longer form clouds of star formation and, accordingly, new stars will not appear.

    In about 100 trillion years, only white dwarfs, neutron stars and black holes will remain in space. After a number of years, which can be represented as one followed by 43 zeros, only black holes will remain in space. And after a number of years, which can be imagined as one followed by 100 zeros, black holes will also disappear.

    After that, nothing will ever happen in the Universe and nothing else will appear. Complete darkness and cold will come.

    The Big Rip

    Another theory called the Big Rip says that the death of the Universe will come much earlier. According to this theory, dark energy will not just expand the Universe, but will eventually tear matter itself apart.

    The Big Rip Theory says that the expansion of the Universe will lead to the fact that at a certain point in time break up gravitational and electromagnetic bonds between stars and galaxies.

    The end of everything : 5 Ways Our Universe Could Disappear

    Clusters of galaxies will begin to disintegrate, then this will happen to galaxies and the stars will go free floating through space. Still later, their planets will flee from the stars. Destructive events, during which all stars and planets will be destroyed, will lead to the fact that matter will be torn apart and eventually the very fabric of space-time will disappear.

    According to this theory, the death of the Universe will come in 22 billion years. But the most interesting thing is that the deadly denouement will come in just a few months, as the solar system will disappear. And the Earth itself will collapse just half an hour before the Big Rip, which will end with the disappearance of all atoms.

    Big squeeze

    When discussing likely scenarios for the death of the universe, many scientists tend to the first two options. But there is a theory called the Big Crunch, which says that the universe can return to its original state again, that is, it will shrink to an incredibly small size.

    According to this theory, the gravitational forces will prevail over the expansion forces of the universe, and it will begin to contract. First, clusters of galaxies will merge together, then the galaxies themselves, and after that all the stars. And all the while, the temperature of the universe will rise until the remaining stars become so hot that they simply evaporate.

    The end of everything: 5 ways our universe could end

    In the last few minutes of the life of the universe, it will become so hot in it that the atoms fall apart and they will be pulled into black holes that will fill almost all of the remaining space. And in the end, all matter will shrink into a small point, which it was before the Big Bang.

    Adherents of this theory believe that such events will begin in a few billion years. But some argue that a similar compression process will begin as early as 100 million years. In any case, the whole process of turning vast space into nothingness will take approximately 1 billion years.

    Big bounce

    Another theory is very similar to the previous hypothesis. The only thing is that the theory called the Big Bounce says that even if the death of the Universe comes in the form of a complete contraction to a very small state, this will not be the end.

    Scientists believe that in this case a new The Big Bang and the Universe will begin to expand again, filled with all its constituent objects. But, according to this theory, the death of the universe and its rebirth will be an endless series of events.

    The end of everything : 5 Ways Our Universe Could End

    The Big Bang

    The last theory might be the most troubling of the list, as the death of the universe could come at literally any moment. This theory is called the False Vacuum Disintegration Hypothesis or Big Cotton.

    According to the laws of physics, any system tries to become stable. To do this, it goes from a high energy state to a lower energy state until it stabilizes in the lowest possible energy state. For quantum fields, this is their vacuum state.

    It is believed that all known quantum fields are in stable vacuum states, except for one – the Higgs field. It appears to be in a false vacuum, meaning that it appears to be stable at present, but is not predicted to be in its lowest energy state.

    Accordingly, at any second, the Higgs field can suddenly go into a state with a lower energy and thus destroy a huge part of the Universe, and maybe the whole of it.

    In this case, one small point in space, which will go into a lower energy state will result in a vacuum-breaking wave that travels at the speed of light and destroys everything in its path. People on Earth will not even be able to see this in advance until this wave crashes into our planet.

    Scientists believe that in one of the scenarios for the development of subsequent events, the Earth and all life will not be destroyed, but they will have to live under conditions of completely different laws of physics. But in the worst case, all matter will be destroyed.

    Some scientists believe that such a development of events is almost impossible, others say that this could happen in billions of years, and still others argue that we already live in a new physics and it has already happened. At the same time, the Higgs field may be more stable than we think, and such a death of the universe is impossible.


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