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Re: Chicxulub's Antipode (Re: cause of death at KT)

At 13:51 2006-09-02, James R. Cunningham wrote:

I believe it would be mostly sub-orbital stuff that would nail the antipode.

Actually not. To reach the antipodal point orbital speed is required. The debris hitting there would impact the atmosphere at 8 to 11 km/s, with the speed increasing over time as the stuff in more elongated orbits returned. Nearly all material would return to Earth within several days.

Tommy Tyrberg