Mars is the fourth planet from the Sun, and the second smallest planet in the solar system. Mars is named after the Roman god of war, and is referred to as the “red planet” because of the iron oxide that is on the surface, which gives Mars its red appearance. The “red planet” is a terrestrial planet with a thin atmosphere. Mars has similar rotational and seasonal cycles to Earth. Also, Mars is home to Olympus Mons, the largest volcano, and the second-tallest mountain known in the solar system. Mars can be easily seen from Earth, at night in a clear sky.
There have been ongoing investigations due to the possibility of Mars having the potential of life. The investigations proved that Mars is unable to hold water on its surface, due to its low atmospheric pressure, but there are two large polar ice caps that have been discovered on Mars surface. The amount of water in just one of the ice caps would be enough to cover the entire surface of Earth in a depth of 11 meters of water.
Here is a picture of one of the polar ice caps on Mars.