Observation / Anniversary

Events for July 20, 2026

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Today
All Day

50th Anniversary: First Landing on Mars (Viking 1)

Nationwide USA

First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 50 years ago; originally scheduled for July 4, landing was delayed until this day in 1976 due to rough landing site.

INtl Moon Day

International Moon Day (Annual)

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Global / Inter-Global

Celebrating the 1st people walking on the Moon / another celestial body – International Moon Day has been a recognized / endorsed declaration by the United Nations since 2022.