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by ben_w 964 days ago
Surprisingly little, as the thing is mostly fuel — by the time it hits anything[0] it's almost empty and therefore very light.

It wouldn't even be like the effect of the planes on the WTC in 9/11, as planes use fuel continuously during flight, whereas spacecraft use almost all of it just to take off.

[0] which implicitly assumes the self-destruct still isn't working right