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Nov28 Fun Holiday – Red Planet Day

November 28 is Red Planet Day, a day to celebrate and learn more about the Red Planet - Mars. The planet is called so because it appears red in color.

An interplanetary space station orbiting Mars.

Mars is also called the Red Planet.


The date of the unofficial holiday commemorates the day in 1964 when Mariner 4, a robotic interplanetary probe was launched by NASA and the Jet Propulsion Laboratory (JPL).

Close-up of Mars

In the 8 months it was on its mission, the Mariner 4 became the first spacecraft to successfully fly by Mars. It also gave the world the first close-up images of Mars. Since then several exploratory missions have been sent to Mars to gather data about the planet.

Today, 5 spacecrafts orbit Mars and 2 spacecrafts - the Curiosity Rover and the Mars Exploration Rover Opportunity - are on the planet's surface. All 7 send incredible amount of data about the planet back to astronomers on Earth.

Similar to Earth

Named after the Roman god of war, Mars is the seventh smallest planet in the Solar System. Similar to Earth in many ways - it has the same rotational period and seasonal cycles - Mars has 2 moons, Deimos and Phobos, and has the largest volcano, Olympus Mons, in the Solar System.

Because of its similarity to Earth, many astronomers and scientists believe that at some point in its history Mars may have been a hospitable planet for life.

Exploration of Mars has been high on the agenda of the space programs of many countries. NASA, the American space agency has estimated that it could send humans to the Red Planet by the 2030s.

How to Celebrate?

  • Learn more about the planet and its environment.
  • Join a local astronomy club and see if you can get a glimpse of the planet.

Did You Know…

…that the reason Mars appears red is because its surface is rich in iron oxide or rust?

Red Planet Day Observances

Fun Holiday: Red Planet Day Observances
2024ThuNov 28Red Planet Day
2025FriNov 28Red Planet Day
2026SatNov 28Red Planet Day
2027SunNov 28Red Planet Day
2028TueNov 28Red Planet Day
2029WedNov 28Red Planet Day
2030ThuNov 28Red Planet Day
2031FriNov 28Red Planet Day
2032SunNov 28Red Planet Day
2033MonNov 28Red Planet Day

See all Fun Holidays

Other Fun Holidays around November 28

25 Nov

Shopping Reminder Day

Get your shopping list ready and make a list of things you need to buy before the holidays.

26 Nov

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Have your cake and eat it too on this fun food holiday.

30 Nov

Computer Security Day

Spend the day learning about computer and internet security and address security vulnerabilities on your computers.