There are no significant differences.
Very few similarities exist between Mars and Saturn. Mars is a smallish terrestrial (or rocky) planet, while Saturn is a large gas giant planet. Mars has two small satellites, while Saturn has dozens of large satellites, and millions of small ones that form the "rings" of Saturn.
Mars can be compared to Earth, because they both have numerous similarities.
Mars and Venus at most, yet they haven't many similarities.
It is theorized that the valley networks on Mars formed when Mars had a warmer wetter climate so that precipitation might account for the branched networks etc.
Mars and Venus both have a core which made of metal and they belong to the inferior planets of our solar system.They are also rocky planet like our earth.
mars feels rough and bumpy
Mars's Valles Marineris
It is speculated that life could exist on Mars. There are very obvious reasons behind that possibility.Because of the Planet's proximity to earthTraces of Hematite, a mineral that forms in the presence of water could lead to possibilities of lakes or oceans on Mars' surfaceThere are other similarities between Mars and Earth.
Between Mars and Jupiter is the Asteroid Belt.
if your asking what planet is between mars and the earth, the answer is none.
Death of a Mars Rover - 2011 TV was released on: USA: 2 June 2011