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In a project drawn straight from the script of a science fiction film, European scientists are working on a shield to protect the Earth from asteroids.
While the planet faces no imminent risk of a catastrophic collision with an extra-terrestrial body, the European Commission has invested $5 million in what it calls "threat mitigation".
Scientists are tasked with looking for ways to deal with so-called "Near Earth Objects" that threaten the planet.
Al Jazeera's Tarek Bazley reports.
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