I have a big problem with asteroids [...] And so has the rest of the human race. Unless we do something to stop it, sooner or later an impact with an asteroid or a comet will lead to the end of most life on Earth.

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Quote text and notes from Wikiquote: Lembit Öpik (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.