How will the Universe end?

[cronus]

http://www.bbc.co.uk/guides/zwtj2hv

Follow this journey to the end and you can lay waste to the Universe in just a few seconds. It’s all to do with the second law of thermodynamics, which was framed in the mid-19th Century.
The second law was a major step forward for science, but it also felt like one giant leap backwards for humankind. It brought with it some very unpleasant news. It involved a quantity new to science called ‘entropy’ and predicted nothing less than something called the 'heat death' of the Universe. As TS Eliot wrote: “This is the way the world ends, not with a bang but a whimper.”

This is where our current understanding of the Universe stands, but there’s no need to worry. Heat death won’t happen for trillions of years, which gives us plenty of time to get to grips with the second law, one of the most important of all scientific principles. Now take the next step and join me on board the entropy train.

(continued, don't worry - you'll die long before the universe does...)

[JimC]

It will be destroyed by a bunch of Marxist mini black holes, because of Obama!

[pErvinalia]

[Rum]

But will someone close the door after them?

[devogue]

I think it will end with a petition by those who are far from gruntled with the state of things.