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!
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
The order of Mercury ,Venus and Mars by size is: Mercury ,Mars and Venus
Mars, Mercury, and i think that's it.
The duration of Mission to Mars is 1.88 hours.
Mercury is closer to the sun than mars
Mercury
Mercury is the first planet from the sun, Mars is the fourth.