The Death of the Universe?

Question

One theory of the death of the universe is the big freeze, where the universe keeps expanding. As everything dies out, the universe will have a silent death. But is this inevitable? Won't new stars keep forming as elements are recycled? Doesn't every heavy element decay into elements in which stars can use it as fuel? Thanks.

Arsenic · Accepted Answer

The universe doesn't just expand, the expansion is actually accelerating (this is Hubble's big discovery). With this fact in mind, yes, it is inevitable that the universe will go with a whimper rather than a bang. Sure, new stars are born, and materials are recycled, but even then stellar formation will eventually stop. And just to put an end to recycling elements, once you reach iron, you can not get any more energy from nuclear fusion, so that's where nucleogenesis ends. Everything heavier is only created during supernovae and hypernovae and that's why these elements are so rare.

George · Answer

No they wont. You are mentioning the theory called "Heat Death". This theory implies that as stars progress they produce heavier elements and use up more resources than they are outputting. This eventually means that the stars die out because less material is available leaving black holes in their death which also destroys matter and as this dwindles the only thing left is the vacuum of space some neutrons and electrons whizzing around maybe two or three where our galaxy once was. And eventually even the black holes just evaporate leaving nothing. The lack of protons and stars is why its called the heat death.

? · Answer

No, it's nonsense.  The universe isn't actually expanding at all. The idea that it does comes from misinterpreting galactic redshifts as a doppler effect when they are actually a scattering effect. The galaxies are not generally receding from each other at all. Their light simply loses energy through it's interaction with the molecular hydrogen that fills intergalactic space:
http://www.newtonphysics.on.ca/universe/

If space expanded, as well as stretching out the energy of light radially causing distant galaxies to appear redshifted, it would stretch it out transversely causing a reduction in their surface brightnesses. This is not what we observe: 
http://www.sci-news.com/astronomy/science-universe-not-expanding-01940.html

Expanding space would also stretch out the light curves of quasars (their oscillation in luminosity). No sign of this either:
http://phys.org/news190027752.html

This documentary may enlighten you:
https://www.youtube.com/watch?v=IFFl9S39CTM There never was a Big Bang.  The universe has existed for eternity and always will.  It can't "die".

? · Answer

The cold heat death hypothesis - there is no new matter to form new stars. The stars burn out and darkness falls. The End. 
There is no recycling, there is no source of new Hydrogen for stars to condense from
Big Rip hypothesis (current favourite) the accelerating expansion of the Universe continues - everything pulls apart, galaxies, black holes, stars, planets, molecules, atoms - leaves a thin dead haze of quarks, leptons and bosons.

MAYUR · Answer

There 2 possibilities 
1 is freezing - expansion of universe like u said
2 is gravity - blackhole will eat every planet and only black hole then blackholes will eat each other .

Final black hole will die also 
3 same as 2 final black hole will bigbang

匿名 · Answer

There is no end

The Death of the Universe?

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