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Tick tock, tick tock… You can’t hide from the molecular clock. www.shutterstock.com

Explainer: what is the molecular clock?

The molecular clock is helping us deepen our knowledge of evolution and completing the tree of life. But how does it actually work?
Black holes will be all that remains before the universe enters heath death. But the story doesn’t end there… NASA/ESA/wikimedia

The fate of the universe: heat death, Big Rip or cosmic consciousness?

In about 10100 years, the universe will have passed away in a tragic ‘heat death’. But don’t despair, eventually random conscious brains may pop out in empty space to shake things up.