Why everybody is talking about Mars ?
Mars facts Mars is the fourth planet from Sun and is the second smallest planet in the Solar System after Mercury. Mars gets its name from the Roman God of war and is often referred as the "Red Planet". Mars Mars facts and information Mars is a terrestrial planet with a thin atmosphere, having similar features to both of impact craters on the moon and to the valleys, deserts, and polar ice caps of Earth. The orbital period of Mars is almost twice of that of Earth. Hence an Martian year would be equivalent to almost 2 Earth years. Mars Atmosphere and Constituents Mars has a very thin atmosphere consisting of 96% carbon dioxide, 1.93% argon and 1.89% nitrogen along with traces of oxygen and water. Liquid water cannot exist on the surface of Mars due to its low atmospheric pressure, but landforms present on Mars strongly suggest that liquid water once existed on the planets surface. Further evidence that liquid water existed on the surface of Mars comes...