All Day

International Moon Day (Annual)

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.

52nd Anniversary: First-Ever Landing on Mars (Viking 1)

Nationwide USA

First USA spacecraft to successfully land on another planet commemorated today for its accomplishment 52 years ago; originally scheduled for July 4, landing was delayed until this day in 1976 due to rough landing site.