Mars also called the ‘red planet’ is the second smallest planet in our solar system present just after the earth. Did you know that a person who weighs 50 kg on Earth will have only 18.85 kg of weight on Mars due to its lesser gravitational force. Another one is, the giant volcano of the Solar System named ‘Olympus Mons’ also present on this planet which is about three times taller than the Mt. Everest. Like this, still there are many interesting and unknown facts about Mars are there that scientists are revealing day by day during their researches. For more details, visit http://toptrendingthings.com/17-interesting-facts-mars/