Abstract
Artiklen giver en kvantitativ analyse af kollisionshyppigheder mellem Jorden og asteroider. Der skelnes mellem kilometerstore objekter med globale konsekvenser og mindre legemer med regionale effekter. Estimater baseret på kraterstatistik og populationsmodeller diskuteres kritisk. Forfatteren understreger, at moderne observationsteknologi giver mulighed for forudsigelse og eventuel afværgelse. Fysikere vil sætte pris på den statistiske behandling og de dynamiske overvejelser omkring baneberegninger.
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