inhibitor have been on space for 400000000 age
plutonium_239 has not half_life_of_about_24,000_years plutonium_239 has not half_life_of_24,390_years earth is not over_400_million_years_old. pyramids_of_egypt is over_4000_years_old. space is not time. pyramids_of_egypt is not over_4000_years_old. plutonium_239 has half_life_of_24,390_years earth is over_400_million_years_old. space_age is not time. space_age is time.