The Cosmos Past and Present

Estimated at 93 billion light years in diameter, the cosmos is everything we see when we tilt our attention to the night sky and much more. The history of measuring and theorising on space is the subject of an exhibition Cosmos and Culture currently showing at the Science Museum, London.

The cosmos was also the subject of the recent Annual Science Lecture at the Natural History Museum given by Lord Martin Rees, who uncovered the origins of the universe, the possibility of life elsewhere and the new wave of computer-led exploration.

I, Science’s Tom Bragg went to both to discover how we came to know so much about the cosmos, and what’s left to find out.

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