March 10, 1982: Could planetary alignment predict doomsday? (more) Today in History—March 10: The Day the Planets Aligned—and the World Didn’t End Written by Tara Ramanathan Assistant Technology Editor at Encyclopedia Britannica. Tara Ramanathan Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Mar. 6, 2026 •History March 10, 1982: Could planetary alignment predict doomsday?© Glen Martin—The Denver Post/Getty Images; Photo Illustration Encyclopædia Britannica, Inc. On this day in 1982, every planet in the solar system aligned on one side of the Sun—and we braced for the world to end. Today in History is a daily newsletter from Britannica.Encyclopædia Britannica, Inc. Want to learn more about what happened on March 10, or any other day of the year? Sign up to receive the...

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