1. If Mars is placed in the 1st, 4th, 7th, 8th or the 12th house of your Horoscope, then you have a Mars Affliction (known as Manglik). Meaning Mars will cause problems in relationships and how you relate to life in general, especially in the first 30 years of life. However Mars is a planet that learns from his mistakes, so maturity will bring hard earned wisdom.
2. Mars, the fiery red angry planet, is half the diameter of Earth with has the same amount of dry land. Like Earth, Mars has weather (including seasons), polar ice caps, volcanoes, canyons. There are even signs of ancient floods on Mars.