He mentioned this while speaking at the Oxford Union debating society on 'The Origin of the Universe', India Times reports.

"Although the chance of a disaster to planet Earth in a given year may be quite low, it adds up over time, and becomes a near certainty in the next 1,000 or 10,000 years.

"I don't think we will survive another 1,000 years without escaping beyond our fragile planet," he said.

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Though no one on earth at the moment will be affected with this prediction, it may still cause some to shiver that the precious planet has an expiry date.