There is simple evidence that, even in recent times, the Earth has suffered major impacts from asteroids and comets. What dangers do they hold for our civilisation? Major efforts now being made to detect those that might harm us and strategies are being developed to prevent their impacts. But we do have a problem with comets...
All our lectures are available for free download from the Gresham College website, in video, audio or text formats: gresham.ac.uk
Gresham College professors and guest speakers have been giving free public lectures in central London since 1597. This tradition continues today and you can attend any of our lectures, or watch or listen to them on our website.
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