Mars
Mars is the fourth planet from the Sun orbiting at a distance of 249,228,730km at aphelion and 206,644,545km at perihelion. Mars, the fourth planet from the Sun (after Mercury, Venus and Earth), is the center of interest of the Marspedia project. Of all planets of our solar system, except Earth, it is considered the most habitable place. This makes it the focus for future manned colonization and settlement planning.
Physical characteristics
Mars has gravity 1/3 of Earth's. It is the fourth planet from the Sun.
Climate
The climate of Mars is Earth-like with seasons. Temperatures vary from -140 celsius to +20. The atmospheric pressure is 1% of Earth's atmosphere.
Geology
Evidence indicates that Mars once had a wet and warm past.
Exploration of Mars
Several probes and soft landers have explored Mars, including the MER rovers, the Phoenix lander and MRO satellite. Eventual goal of manned mission to Mars is planned by several space agencies of the world.
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