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Two chief reasons :
low mass = low gravitational attraction.
no magnetic field around Mars ... thus solar wind strips air, so water evaporates faster, and water molecules are also subject to solar wind erosion.
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoAll the water evaporated. Mars is not a very hot place but the atmosphere is thin and the boiling point of water is quite low when the pressure is low. Mars is not very massive so its gravity field was not strong enough to retain the water, or most of the atmosphere. To make it worse the atmosphere is 95% carbon dioxide which would have trapped the Sun's heat.
Wiki User
∙ 7y agoMars is believed to have some ice beneath its surface. During the Martian summer some of that ice may melt and briefly flow over the surface before boiling away in the low-pressure atmosphere.
Wiki User
∙ 10y agoWell it disappeared because it is too cold on mars so it froze and formed the polar ice caps.
Wiki User
∙ 12y agoit floted away
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How much water does Mars have?
How much water does Mars have?
What planet has evidence of erosion by water?
Earth and Mars
Which planet thought to have liquid water in the past?
Mars. It has been explored by several unmanned land rovers in recent times. Evidence collected from these rovers has helped to build up a picture of Mars' past, revealing that Mars once had liquid water on its surface.
What evidence is there that water has been flowing on Mars recently?
NASA photographs of Mars are the best evidence that water has been flowing on Mars recently. During warmer periods in Mars' atmosphere, the photographs show streaks that look like streams. Scientists agree that this is evidence of water on Mars.
What caused Mars' atmosphere to decinagrate and lose all its liquid water?
As Mars has cooled, its core has solidified and its geodynamo stopped. The loss of Mars' magnetic field allowed more solar energy to reach the surface. That solar radiation heat dissipated the surface water and atmosphere. Also, because Mars' gravitational field is not as strong as earth's, it was much easier for atoms and molecules at the top of the atmosphere to escape to space. Over millions of years this process led to the loss of most of Mars' atmosphere.
When did Mars lose its surface water?
Mars lost its water (or it all froze) fairly recently . . . about 1 million years ago.
How much water does Mars have?
How much water does Mars have?
Is on Mars life or water?
Some tresses of water on mars .So we can say that there is water on mars
Does mars have flowing water on it?
mars has flowing water on it
What kind of evidence would the mars exploration rovers be looking for that indicated that water once flowed on mars?
Is there water on Mars :) ???????????????surface temperatures on Mars are too low for liquid water to exist and Mars has no rivers, seas, or oceans. However, there was water once. I know this because I am an austernaut that studdys Mars. And Mars has dried up water channelsYes there is water on Mars
How much of Mars has water?
Mars has no liquid surface water.
Does the water on Mars flow slowly?
There is no liquid water on Mars.
Does in Mars exist water?
There was water at one time on Mars.
When was Water for Mars created?
Water for Mars was created in 2009.
Can frozen water be melted on Mars?
Mars is hot so frozen water can melt in Mars.
Does the Mars have water?
Mars does have water, it is just frozen in its ice caps.
Does Mars or its moons have water?
Mars has water (Ice) on its polar caps
