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Century-Long Study Reveals Startling Differences in Life Expectancy Across U.S. States
Hubble reveals 20-year time-lapse of Uranus' changing atmosphere | A 20-year-long study providing new insights into Uranus' complex seasonal changes
Decade-Long Study Challenges Traditional Views of Evolution
Decades-Long Study Shatters Myth: Multivitamins Don’t Lower Death Risk
