It is amazing to get used to the fact that the universe is continuously evolving, it is changing every day, every minute and every second. It will ultimately die and take rebirth. This cycle of birth and death has been there prior to our existence and will continue till eternity.
The Big bang theory no doubt has its limitations but nevertheless, it is a good starting point. For a long time it was thought that the universe is static, not changing and in equilibrium. However experiments showed it otherwise, it was found that the universe which we have made home is ephemeral, it is in a continuous state of change. Nothing is permanent, though the world gives an illusion of permanence. The Big Bang theory was an absolute effort to explain how our universe came into existence.
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Are you convinced with the Big Bang theory?
WriterArtist, Thank you for all the practical information, pretty pictures and product lines.
Have you read Bang! by Chris Lintott, Brian May and Sir Patrick Moore? It's either in there or in one of the Stephen Hawking books that it's possible to get something from nothing in the sense of antiparticles and particles interacting after non-reacting.
Is your inclination more towards the Big Crunch than the Big Stretch? The former, with its yoyo-like expansion and contraction, perhaps would fit more easily into cyclically born, dying, reborn universes of Brahma the creator, Shiva the destroyer (I love those statues of his dance of destruction) and Vishnu the preserver.
@frankbeswick - I agree. We can at least come out with some theory for now. Later on, it has to be tweaked or modified altogether.
@blackspanielgallery - Interesting observation. This universe is expanding like a bubble but you should not have any doubts on its shrinking. If the black holes outnumber other stars, they will pull all the celestial bodies into it, the universe will shrink into Singularity. Our universe will die and a new universe will take its place. Nothing is permanent, it is the "Law of Nature".
All scientific ideas are provisional, so science can at best produce viable hypotheses. The Big Bang is such a hypothesis, tough the most credible one at the moment. But Cosmology will tweak and adjust the theory from time to time.
Interesting. Indeed we cannot get past the Big Bang, and even that is now being questioned by physicists. As for repeating, we have an expanding universe that is increasing its expansion, hence dark energy, and we have serious doubt it will be able to collapse back to a singularity.