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Stephen Hawking: 'We should start seeking other planets'

Professor Stephen Hawking has warned the human race must colonise a new planet or face dying out.

The Cambridge scientist was in London previewing a science and arts festival festival in Norway next month.

He believes overpopulation and climate change are threatening human survival and the search for other planets to live on should start now.

I strongly believe we should start seeking alternative planets for possible habitation.

We are running out of space on Earth and we need to break through the technological limitations preventing us living elsewhere in the universe.

– Professor Stephen Hawking