Sooner or later we will face a catastrophic threat from space. Of all the possible threats only a gigantic asteroid hit can destroy the entire planet. If we prepare now we better our odds of survival. The dinosaurs never knew what hit them.

Sooner or later we will face a catastrophic threat from space. Of all the possible threats only a gigantic asteroid hit can destroy the entire planet. If we prepare now we better our odds of survival. The dinosaurs never knew what hit them.

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