Red Planet Day, observed annually on November 28, celebrates humanity’s enduring fascination with Mars, the "Red Planet." It has a very thin atmosphere over a dusty, chilly, desert world. Along with having seasons,

Every year on November 28, we celebrate Red Planet Day, a day all about Mars, which is the fourth planet from the Sun. Mars is often called the Red Planet due to its reddish color and has fascinated people—scientists and non-scientists alike—for many years.

Red Planet Day celebrates significant scientific achievements and inspires ongoing research into Mars' geology.

Red Planet Day, observed annually on November 28, commemorates the launch of NASA’s Mariner 4 mission in 1964, which marked humanity’s first successful flyby of Mars. This day celebrates