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THE WEEKLY SCOOP: Undercover DetectivesT-rays are digitally uncovering everything including potential terrorists, buried images on church walls, and subsurface flaws in the foam used to protect space shuttles. |
SCIENCE SNAPSHOTS: Salty, Old and, Perhaps, a Sign of Early LifeExploring salt deposits, researchers unearthed the planet's oldest-known, complete molecules thought to have been made by living things. |