Two terms I never heard in the table for the asteroid: Parlermo Scale https://en.wikipedia.org/wiki/Palermo_Technical_Impact_Hazard_Scale https://en.wikipedia.

Two terms I never heard in the table for the asteroid: Parlermo Scale https://en.wikipedia.org/wiki/Palermo_Technical_Impact_Hazard_Scale https://en.wikipedia.org/wiki/Palermo_Technical_Impact_Hazar... Torino Scale https://en.wikipedia.org/wiki/Torino_scale https://en.wikipedia.org/wiki/Torino_scale