How Will Our Universe End? Big Crunch Theory

we've all heard about the big bang and I

am really sad that the series has ended

well here of course I'm talking about

the Big Bang that actually started

everything again most people have heard

of that but what do you know about the

Big Crunch and now I'm not talking about

some random candy bar while most

scientists believe that our universe

began with a massive burst of energy

opinions remain divided about how

everything will one day come to an end

there's a range of theories such as the

big fries and the big rip but the one

that's considered to be the most likely

scenario is the Big Crunch so what is

the Big Crunch but the Big Crunch Theory

has its roots in Einstein's theory of

general relativity everything in life

follows an ebb and flow when one event

occurs the reverse is likely to occur

after hitting the extreme if the Big

Bang causes the expansion of the

universe then eventually the opposite

will become true once the universe has

reached its largest size and as

determined by the amount of energy

that's present it will begin to be

collapsed in on itself and in the end

form a massive black hole that contains

all matter due to the conditions that

are present in the singularity of the

size everything will be squashed down to

a miniscule size which is why it's

called the Big Crunch so probably not

great news for all those of you who are

a class or for bacon and tend to live

billions of years well here's the good

news

while the math suggests that the Big

Crunch is possible and even probable

there's a problem for those who dedicate

their careers to understanding questions

like this we don't yet fully

comprehending everything in a universe

and there are a couple of unknowns that

will affect our ultimate fate

first the universe's expansion appears

to be the interplay of two factors

density and outward momentum density has

a direct correlation to the amount of

gravity that is present so the denser

the universe is the more gravitational

forces that take place this on its own

would mean that everything will

eventually gravitate towards everything

else and the final Big Crunch becomes an

inevitability although there's no

friction in space the effect of gravity

would be more than enough to counteract

the initial outward momentum caused by

the Big Bang and all matter what

essentially returned to where

come from the problem with this though

is that observations of the universe

have shown that things aren't behaving

as simply as we would expect the outer

reaches appear to be expanding at a

faster rate than those closer to us and

galaxies are actually moving further

apart from each other scientists don't

know why this is happening but they have

given a name to this unknown entity dark

energy this extra element in the

expansion of the universe means that

there are two potential outcomes

it will either continue to expand

forever and objects will be so far apart

from each other that everything will

freeze were we could still faced a Big

Crunch the determining factor is how

much dark energy are actually there if

there is enough which some scientists

believe could be the case then

everything will continue to expand if

there isn't enough though then the

forces of gravity will once more

eventually over comment and bring

everything back together again

some believe the seeming prevalence of

dark energy could well signal the

beginning of the Big Crunch however in a

report released in 2015 it was suggested

that the current increased rates of

expansion is the last gasp of the

expanding universe and that within tens

of billions of years the contraction

will begin so how would the Big Crunch

happen if we assume that there isn't

enough dark energy and that the Big

Crunch does take place then it won't be

as spectacular as the Big Bang was the

universe will begin to contract evenly

because matter is more or less

distributed consistently it would be a

slow process for what begin to gradually

pick up in speed as galaxies got closer

to one another and the forces of gravity

have more of an effect in about a

hundred billion years from now as things

reach and climax

temperatures would significantly

increase in this will result in stars

exploding and in vaporizing and all

objects will be broken down into their

constituent atoms which themselves will

begin to break apart in the final stages

as all matter from the universe compacts

into a small space things will become

extremely chaotic so much so that some

predictions suggest as space-time will

become so warped that it would shatter

into droplets meaning all concepts of

time

distance and a direction would become

meaningless

of course no living organism would have

been able to survive to this point in we

would have all been doomed a long time

before this so with our lack of full

understanding of the process taking

place in the universe it's impossible to

know for sure how everything will end

one of the scenario is the Big Crunch

which will see every piece of the matter

returning to where it originated in and

all that will remain to be an

unimaginably large black hole what

happens at that point really is anyone's

guess and it could potentially see the

birth of a new universe it's also

possible that this has all happened a

number of times already and we're alive

in just another in a long line of

cyclical expansions and contractions

again only those of you who's planning

to be alive for billions of years will

really have to worry about this