First of all, Mars is a lot closer to Earth than Mercury. The other reason is that since it is further away from the sun, it is not as hot as mercury which makes it easier to send rovers.
neptune is better and this is dumb!
The main difference is that a manned Mars mission is a great deal longer.
I dont know ask jacob curly!
The order of Mercury ,Venus and Mars by size is: Mercury ,Mars and Venus
Mainly because of the distance to the sun, which makes Mercury a lot warmer and Mars a fair bit colder. Mercury is too hot to have any running water, and Mars is too small to retain an atmosphere.
Earth > Venus > Mercury > Mars
1. they are both different sizes 2.they are both different distances from the sun 3.they are both different tempratures 4.they have both got different atmosphere pressures 5.their years are both different legnths of time i.e mercury:88days mars:684days
Mars, Mercury, and i think that's it.
It's main mission is to research for life on Mars.
The duration of Mission to Mars is 1.88 hours.
Mercury is closer to the sun than mars
Mercury