Ancient, near-indestructible 'water bears' have crash landed on the moon

As It Happens

Thousands of ancient, eight-legged creatures have crash-landed on the moon — and they'll probably be there long after the human species is wiped off the face of the Earth. Nova Spivack, whose organization shipped the creatures into space, talks to As It Happens guest host Piya Chattopadhyay.

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