It was just four and a half months ago that I interviewed 90-year-old author Zecharia Sitchin about his tales of ancient alien visitors from the planet Nibiru -- and his campaign to have DNA tests done on a 4,500-year-old Sumerian noblewoman. Now comes word that Sitchin passed away on Oct. 9. He left this world with questions unanswered ... but isn't that always the way things go? My condolences to Mr. Sitchin's family. Tributes can be sent to firstname.lastname@example.org.