Since Mars and Saturn both orbit the Sun, the distance between them is constantly changing as both planets move in their orbits.
Those aren't planets; they aren't big enough. We call them "asteroids".
The orbit of Jupiter is closer to Mars' orbit than to Saturn's orbit. Mars = 1.52AU Jupiter = 5.20AU Saturn = 9.54AU Having said that, the positions of the planets are always changing as the planets orbit the sun at different rates. Mars is the closest planet to Jupiter as of February 2011, but this is not always the case.
Two, Mercury and Venus.2, mercury and venus
none Stars do not orbit planets.
No planets orbit around Mars. There are two moons that orbit around Mars.
None. Mars is a planet which orbits The Sun. Planets do not orbit other planets. Mars does have two moon which orbit around it.
Asteroids
Mars and Jupiter.
Mars has two small moons named Phobos and Deimos, but no planets orbit it.
they are called asteroids.
Between Earth and Mars there is a large asteroid belt.
Since Mars and Saturn both orbit the Sun, the distance between them is constantly changing as both planets move in their orbits.
Mars itself is a planet. If you are asking how many moons it has, it has two moons that orbit it.
All planets orbit the Sun.
The Asteroid Belt is located in between the orbit of Mars and Jupiter.
The Asteroid Belt is between the orbit on Mars and Jupiter.