Mars Facts for Kids

Embark on an interplanetary journey to Mars, our fascinating neighbor in the solar system! Often called the ‘Red Planet’ due to its reddish appearance, Mars has been a subject of intrigue and wonder for scientists and space enthusiasts alike. From towering volcanoes to deep canyons, Mars presents a landscape both alien and captivating. Perfect for young space explorers, these 30 fun facts about Mars will take you on an exciting adventure across this mysterious world. So, put on your space helmets, as we launch into a discovery of the incredible features and secrets of Mars!

30 Mars Fun Facts for Kids

  1. Mars is the fourth planet from the Sun in our solar system.
  2. It’s known as the Red Planet because of its reddish color, which is due to iron oxide (rust) on its surface.
  3. A Martian day is called a sol, and it’s just over 24 hours – about 24 hours and 39 minutes.
  4. Mars has the largest volcano in the solar system, named Olympus Mons, which is three times the height of Mount Everest.
  5. It has two moons named Phobos and Deimos.
  6. Mars is half the diameter of Earth.
  7. The gravity on Mars is only 37% of Earth’s gravity. You would weigh much less on Mars!
  8. It has the longest valley in the solar system, Valles Marineris, which is over 4,000 km long and 7 km deep.
  9. Mars experiences seasons just like Earth, due to its tilted axis.
  10. The atmosphere on Mars is very thin and mostly made up of carbon dioxide, with very little oxygen.
  11. Mars has the largest dust storms in the solar system, which can cover the entire planet.
  12. The first successful flyby of Mars was by Mariner 4 in 1965.
  13. Mars doesn’t have a global magnetic field, but it has patches of magnetized crust.
  14. The average temperature on Mars is minus 80 degrees Fahrenheit.
  15. Mars has polar ice caps made of water and dry ice (frozen carbon dioxide).
  16. The highest temperature on Mars can reach about 70 degrees Fahrenheit near the equator during summer.
  17. The first rover to explore Mars was Sojourner, part of the Mars Pathfinder mission in 1997.
  18. Water-ice clouds, fog, and frost can form on Mars.
  19. Mars is home to the “Seven Minutes of Terror” landing sequence due to its challenging atmosphere for spacecraft landings.
  20. The first picture from Mars was taken by Viking 1 in 1976.
  21. Mars is about 142 million miles away from the Sun.
  22. A year on Mars is almost twice as long as a year on Earth, lasting about 687 Earth days.
  23. The Curiosity Rover, launched in 2011, is still active on Mars, studying the planet’s climate and geology.
  24. In the future, Mars could potentially be a destination for human colonization.
  25. The thin atmosphere means that water can’t exist for long on the surface without evaporating or freezing.
  26. Mars has a very weak greenhouse effect.
  27. Mars’ two moons are thought to be captured asteroids.
  28. Pieces of Mars have fallen to Earth as meteorites.
  29. There are plans to send humans to Mars in the 2030s.
  30. Mars is home to the deepest canyon and the second tallest mountain in our solar system.


Q: Can we breathe on Mars?
A: No, the Martian atmosphere is mostly carbon dioxide with very little oxygen, so humans would need to bring their own oxygen supply.

Q: Has anyone been to Mars?
A: No human has been to Mars yet, but several robotic landers and rovers have been sent to explore the planet.

Q: Why is Mars red?
A: Mars appears red because of the iron oxide (rust) on its surface, which reflects the Sun’s light.

Q: Is there water on Mars?
A: Mars has ice, and there is evidence that liquid water used to flow on its surface. Current water exists mostly as ice or in the atmosphere.

Q: How long does it take to get to Mars?
A: It takes about six to eight months to travel from Earth to Mars, depending on the alignment and distance between the two planets.

Exploring the fascinating world of Mars opens up a universe of learning and imagination for kids. Each fact about this mysterious red planet brings us closer to understanding our neighbor in space and the potential for future exploration.