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National Moon Day

United States +1 more

National Moon Day is commemorated every year on July 20th, marking the anniversary of the first manned moon landing in 1969, when astronauts Neil Armstrong and Buzz Aldrin set foot on the moon as part of NASA's Apollo 11 mission. This day not only celebrates this monumental achievement in human history but also highlights the […]

Pluto Demoted Day

United States +1 more

Pluto Demoted Day marks the anniversary of the reclassification of Pluto from a planet to a "dwarf planet" by the International Astronomical Union (IAU) on August 24, 2006. This day serves as a reminder of the ever-evolving nature of scientific knowledge and how our understanding of the universe is constantly refined. The decision, which sparked […]