1. Mars is the seventh largest planet in the Solar System.
2. There has been strong evidence, mainly in the form of channels, valleys, and gullies, that Mars once had water flowing on its surface.
3. Mars is home to 'Valles Marineris', a canyon system that is much deeper and much longer than the Grand Canyon in the United States.
4. Mars boasts of having mountains that are higher than Mount Everest, the highest peak on Earth. It also houses Olympus Mons, the highest known mountain in the Solar System.
5. The atmosphere of Mars is about 100 times less dense than the atmosphere of Earth.
6. However, it is dense enough to support weather system that includes clouds and winds.
7. One year on Mars is equal to 687 days on Earth.
8. One day on Mars is 24 hours, 39 minutes and 35 seconds long.
9. The force of gravity on Mars being only about 38 percent of that on Earth, a person standing on its surface would feel his weight reduced by 62%.
10. Mars claims the distinction of the being the planet with the largest volcanoes in the solar system.
11. Mars has two tiny moons - Phobos and Deimos.
12. It is believed that Mars might have harbored life in the past and might have living things existing even today.
