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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.
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∙ 11y ago
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∙ 9y agoScientists believe that Mars used to have flowing liquid water inside of it. Scientists also believe that dry wells used to have flowing liquid water in them.
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∙ 10y agoMars is thought to have had liquid water.
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∙ 12y agoMars
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∙ 14y agoMars.
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∙ 14y agoMars.
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Which planet thought to have had liquid water in the past?
Mars.
Can water exist on a planet with no atmosphere?
Atmospheric pressure is an important factor in keeping liquid water on the surface of a planet. With no atmosphere, liquid water would quickly escape into space. It would depend on various factors such as the temperature and escape velocity of the planet of course. Scientists think liquid water existed on Mars in the past when the atmosphere was a lot denser. Water does exist on the surface Mars, but only as ice.
Which planets have water?
The only planet known to have liquid surface water is Earth, but probably all planets have at least some water. Water is made of two of the three most common elements in the universe, so it's not an exotic compound. Mars has frozen water in its polar caps (and may have had liquid surface water at one time). A number of moons orbiting Jupiter and Saturn have frozen water on their surface and possibly liquid water below that.
What are three discoveries made by spacecraft that have been sent to study mars?
1. Mars does not have liquid water on its surface 2. Mars does not have intelligent, complex life 3. Mars did have liquid water on its surface at some time in the past
Which inner planet once had water on it?
The Rover mission confirmed that Mars once had liquid water on its surface.
Which planet thought to have had liquid water in the past?
Mars.
What planet Thought To Have Had Liquid Water Is The Past?
Mars
What planet thought to have liquid in its past?
mars
Which planet was thought to have liquid water in the past?
Mars. It has features that look like dried-up river beds, etc.
What planet was thought to have water on it in the past?
Mars
What planet is thought to have had liquid water in the past?
it's widely believed that Mars once had liquid water on its surface. The polar regions have been confirmed as ice, and there are 'tracks' on the surface of Mars. These tracks appear to indicate that something (ie large boulders) has moved across the surface, leaving a 'trail' behind them.
Can water exist on a planet with no atmosphere?
Atmospheric pressure is an important factor in keeping liquid water on the surface of a planet. With no atmosphere, liquid water would quickly escape into space. It would depend on various factors such as the temperature and escape velocity of the planet of course. Scientists think liquid water existed on Mars in the past when the atmosphere was a lot denser. Water does exist on the surface Mars, but only as ice.
What planet is thaught to have liquid water nin the past?
I believe you mean Mars (under current exploration) ... but several satellites are known to have water too.
Where might water exist as liquid on Mars?
There is no liquid water now on Mars. There may have been, in the past. Also, there is ice on Mars.
What is the past participle of thinking?
The past participle is thought.
What is the past tense of the word thought?
"Thought" is the past tense form of the verb "to think."
What is the past particle for think?
infinitive: think past: thought past participle: thought
