one day all the stars will burn out and the Universe will be full of dead planets, black holes, and other stellar remnants, slowing decaying till entropy brings the Heat Death of the Universe.

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 ...

Even animals with very small brains turn out to have cultural traditions, which poses a puzzler for biologists wondering what makes human culture unique ...