RED PLANET DAY - November 28 Every year on November 28th, Red Planet Day commemorates the launch of Spacecraft Mariner 4. It’s also a day to learn more about Mars, which is referred to as the red planet. By Michele November 22, 2021
NATIONAL MOON DAY - July 20 National Moon Day is observed annually on July 20 and commemorates what some people feel is the greatest achievement of all time. By National Day Calendar July 18, 2021