We are all surrounded by an unseen, invisible world, a world made of mysterious substances that we can’t see or touch: the Dark Universe. Over the final decades of the 20th century astronomers realised that most of the Universe is missing. When we look up into space with our most powerful telescopes we are only glimpsing a tiny fraction of what’s out there. In fact, every galaxy, every star, every planet, every spec of dust in the night sky accounts for just 5% of the Universe.

The remaining 95% is completely unknown, dominated by enigmatic substances called dark matter and dark energy. Today, scientists from all over the world are trying to prise open a window into this hidden world, a scientific mission with the potential to transform how we think about the cosmos and our place in it. In this fascinating talk, particle physicist Dr. Harry Cliff takes us on a tour of the Dark Universe, revealing how we came to realise that most of the Universe is missing, and telling the story of the ongoing quest to discover its true nature.

Doors Open 7pm, Talk Starts 7.30pm. Come down early and grab a good seat!

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Harry Cliff is a particle physicist based at the University of Cambridge and carries out research with the LHCb experiment at CERN’s Large Hadron Collider. He was a curator at the Science Museum, London for seven years. His 2015 TED talk “Have We Reached the End of Physics?” has been viewed more than 3 million times.