Say it was the size of Corsica and traveling at the speed of a reversing truck and bumped into a land mass. Would it still be an extinction level event?

  • ooterness@lemmy.world
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    12 hours ago

    Imagine a large rock, suspended by helicopters a few miles up in the air.

    Now drop the rock. How fast is it going when it hits the ground?

    The same thing is true for a rock falling from space, but more so. Regardless of initial conditions: if it ever contacts the ground, it will be moving at least 11 kilometers per second.