Difference between revisions of "Mars"

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Evidence indicates that Mars once had a wet and warm past.
 
Evidence indicates that Mars once had a wet and warm past.
  
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Here is truth about global wanimrg:Global wanimrg is one-half of the climatic cycle of wanimrg and cooling.The earth's mean temperature cycles around the freezing point of water.This is a completely natural phenomenon which has been going on since there has been water on this planet. It is driven by the sun.Our planet is currently emerging from a  mini ice age', so isbecoming warmer and may return to the point at which Greenland is again usable as farmland (as it has been in recorded history).As the polar ice caps decrease, the amount of fresh water mixing with oceanic water will slow and perhaps stop the thermohaline cycle (the oceanic heat  conveyor' which, among other things, keeps the U.S. east coast warm).When this cycle slows/stops, the planet will cool again and begin to enter another ice age. Thermohaline cycle:Warm water is less dense than cold water. One of the ocean currents runs North up the east coast of the U.S.When this warm ocean water reaches the arctic ocean, it is cooled which makes it become more dense.  The now dense salt water drops to the sea floor and begins its return to thesouthern loop of its cycle.Fresh water from meltoff of the northern ice pack dilutes this sea water which makes it less dense.The diluted, less dense water drops to the sea floor more slowly which slows the entire cycle.If diluted enough, this circulation stops entirely.When the circulation stops, then the planet will begin to cool and enter an ice age which will stop the meltoff.As the salinity in the north Atlantic increases, the water will once again begin to sink to the sea floor and the cycle will restart and our planet will emerge from its ice age and enter another warm period.That is happening now.  It will change.It's been happening for millions of years.The worrisome and brutal predictions of drastic climate effects are based on computer models, NOT CLIMATE HISTORY. As you probably know, computer models are not the most reliable of sources, especially when used to  predict' chaotic systems such as weather.Global wanimrg/cooling, AKA  climate change':Humans did not cause it.Humans cannot stop it.
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==Popular sites on the surface==
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The [[Martian canals]] and the white [[polar regions]] are known for a long time, for they can be seen with small telescopes from Earth's view point. The [[The face|Face]] has been one of the most mystic geological sites until detailed 3D data revealed its rather unspectacular shape.
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==Exploration of Mars==
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Since the first man-made lander [[Mars 3]] performed successfully a soft touchdown to the Martian surface, 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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[[category:Planets]]

Revision as of 05:26, 10 March 2013

The planet Mars (Greek: Ares)
Astronomical symbol of 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.

Popular sites on the surface

The Martian canals and the white polar regions are known for a long time, for they can be seen with small telescopes from Earth's view point. The Face has been one of the most mystic geological sites until detailed 3D data revealed its rather unspectacular shape.

Exploration of Mars

Since the first man-made lander Mars 3 performed successfully a soft touchdown to the Martian surface, 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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