Planet Mars

Mars surface characteristics have consequences for the Martian atmosphere:
The absence of plate tectonics and the very little volcanic activity are important to understand why Mars has a far smaller greenhouse effect than Earth.

Mars, atmosphere without ozone layer:
The atmosphere of Mars does not have a protective ozone layer and contains 30 times less water vapour than Earth's atmosphere.

Mars climate, important temperature difference between day and night:
Due to a weak greenhouse effect the average temperature is about -63°C with huge differences between day and night.

Mars surface characteristics have consequences for the Martian atmosphere:
The absence of plate tectonics and the very little volcanic activity are important to understand why Mars has a far smaller greenhouse effect than Earth.

Mars, the red planet's main characteristics in short:
Short fact note on the temperature, diameter, pressure, mountains, gravitation, natural satellites and the elements that give Mars' atmosphere its red colour.

Mars, is there water on the red planet?:
What type of water is found and what is the amount of water present in the atmosphere of Mars?