End of everything

There are many theories of how the Universe will die, but only a few are the popular ones. First of all The Big Rip, where expansion of space would beat gravity. At first galaxies would start to move away from each other faster than light speed, then they would split into individual stars (the night sky would become fully dark). After some time everything would be broken into atoms and later into elementary molecules. Finaly even space would be torn apart.

Other theory, The Big Crunch is the reverse of The Big Rip. It says that gravity would beat the expansion and universe would collapse because of created black hole. Inside it the new universe would start from pieces swallowed by this black hole. This process of expansion and collapse could repeat forever.

 The most likely theory is The Big Freeze. The universe would keep expanding because of dark energy (topic for another time) but wouldn't beat gravity. Stars would go out of fuel and die or collapse into black holes. After googol (10 to the 100) years black holes would die due to the Hawking radiation (topic for another time). Universe would freeze to 0 degrees Kelvin (absolute 0), and become dark and cold space full of nothing. 

Is any of those theories true? Well, we have no idea. We aren't aware of the properties of the Universe and laws of physics nowadays. Could life in our Universe survive The End? It might have a chance, if it was developed enough to stop/reverse the process or escape to another Universe.

https://www.youtube.com/watch?v=R5orcCuprG4&ab_channel=BigThink

https://www.youtube.com/watch?v=uD4izuDMUQA&t=1062s&ab_channel=melodysheep

Komentarze

  1. englishdiary22 września 2020 12:19

    Luckily or not, none of us will be alive to witness the end, whichever version of it actually happens.

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    1. M**** Z********22 września 2020 15:31

      Probably, but we should still seek and study for the benefit of future generations

      Usuń

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