Scientists seek marijuana's isotopic fingerprint

Scientists at the Alaska Stable Isotope Facility can tell whether marijuana confiscated in a traffic stop in Fairbanks likely came from Mexico or the Matanuska Valley. They're also working on a way to determine whether it ...

Archeologist says Holy Grail is in Rome

An Italian archeologist says the Holy Grail -- a cup used by Jesus Christ at the Last Supper -- is buried beneath a church in Rome.

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