Big Crunch by MagikUnicorn
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Description
BIG CRUNCH
In physical cosmology, the Big Crunch is one possible scenario for the ultimate fate of the universe, in which the metric expansion of space eventually reverses and the universe recollapses, ultimately ending as a black hole singularity or causing a reformation of the universe starting with another big bang. Sudden singularities and crunch or rip singularities at late times occur only for hypothetical matter with implausible physical properties.
If the universe is infinite in extent and the cosmological principle (not to be confused with the cosmological constant) does not apply, and the expansion speed does not exceed the escape velocity, then the mutual gravitational attraction of all its matter will eventually cause it to contract. If entropy continues to increase in the contracting phase (see Ergodic hypothesis), the contraction would appear very different from the time reversal of the expansion. While the early universe was highly uniform, a contracting universe would become increasingly clumped. Eventually all matter would collapse into black holes, which would then coalesce producing a unified black hole or Big Crunch singularity.
The Hubble Constant measures the current state of expansion in the universe, and the strength of the gravitational force depends on the density and pressure of matter in the universe, or in other words, the critical density of the universe. If the density of the universe is greater than the critical density, then the strength of the gravitational force will stop the universe from expanding and the universe will collapse back on itself—assuming that there is no repulsive force such as a cosmological constant. Conversely, if the density of the universe is less than the critical density, the universe will continue to expand and the gravitational pull will not be enough to stop the universe from expanding. This scenario would result in the "Big Freeze", where the universe cools as it expands and reaches a state of entropy. One theory proposes that the universe could collapse to the state where it began and then initiate another Big Bang, so in this way the universe would last forever, but would pass through phases of expansion (Big Bang) and contraction (Big Crunch).
Recent experimental evidence (namely the observation of distant supernovae as standard candles, and the well-resolved mapping of the cosmic microwave background) has led to speculation that the expansion of the universe is not being slowed down by gravity but rather accelerating. However, since the nature of the dark energy that is postulated to drive the acceleration is unknown, it is still possible (though not observationally supported as of today) that it might eventually reverse its developmental path and cause a collapse.
Comments (25)
giulband
Fantastic image very expressive ed interesting concept in your words. I think that no one can really know the future and is it also possible that time is not not the same for the eternity or not continuos We are not able to understand all this with our senses because they are very very limited !!
ladylake
Great combo of colors.
peedy
Fantastic image, MU! Corrie
DennisReed
cool
jayfar
This is all interesting stuff Magik.
Jean_C
Un ciel fascinant, superbe image!
UteBigSmile
Looks realy very nice!
dr_bernie
Beautiful image and very interesting thoughts! Along the same line of ideas (although more of a story than scientific facts) I have done this render: http://www.renderosity.com/mod/gallery/index.php?image_id=2598374&user_id=573320&member&np
Hubert
Cool depicted!!
BryceHoro
Well, we won't be able to watch the Big Crunch but we can try to imagine it. I like what you've done with the idea. Great image.
jmb007
ce n'est pas demain la veille !
magnus073
Magik, je aime la belle image que vous avez créé pour cette présentation. ce fut très instructif et je aimé apprendre sur le (Big Crunch). merci pour la traduction en anglais.
Cyve
WOW... C'est absolument fantastique Cousin... j'adore ce ciel et le paysage est vraiment incroyable !!!
Richardphotos
outstanding text and superb flame art
jendellas
Excellent & interesting. xx
bebopdlx
Nice work and info as always.
Glendaw
Truly wonderful vision that completes the amazing information. Thanks for sharing ~
bakapo
wow, this is super cool!
RodS
Really awesome work, Real! It really goes well with the theory. I've read this postulation some time ago - the cycle of big bang, and big collapse, big bang again is said to have been going on infinitely and will continue infinitely.
renecyberdoc
awesome.
flavia49
fabulous image
Faemike55
Whatever the fate, I will be long dead and dust when the end arrives. have to admit that the concept is intriguing and I for one would love to be on the outside looking in when all collapses
danapommet
Fantastic narrative Réal and an amazing visual interpretation of all of that information!
ia-du-lin
really cool composition
GOLDILOCKSUK
Thank you for explaining it all I love the design and colour :) Cathy xoxxo