Questions regarding Mars, the fourth planet from the sun.

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3
votes
0answers
46 views

Is it possible to grow plants on Mars? [migrated]

If we provide adequate water supply will it be possible to grow plants/seeds/moss/algae (from Earth) on Mars? How different are Mars soil from Earth's soil?
5
votes
2answers
99 views

If Venus and Mars changed places, would we then have 3 habitable planets?

This is the supposition: Venus is too hot, Mars is too cold. If they switched places then Solar energy would change to make both more Earth like. We might as well have had three instead of just one ...
6
votes
1answer
94 views

Asteroids between Mars and Jupiter

Is the cluster of asteroids between Mars and Jupiter two dimensional as seen in every model of solar system shown in books or television? Or is it three dimensional as i think it should be?
0
votes
1answer
46 views

Martian Brother [closed]

According to some documentaries History and Discovery, fossils have been found in a meteorite that fell to earth. This meteorite came from Mars. It is possible that the Martians always try to be ...
5
votes
1answer
56 views

Where did Mars water go?

Many sources indicate that there is ice water on Mars today, but it is mainly traces, here and there, but not that much. However, solid hypothesis state that there were oceans on Mars, see ...
11
votes
1answer
144 views

Could any known, living organisms on Earth survive on Mars?

No life has been discovered outside of Earth (yet?), but do we know if anything that would be considered "living" on Earth could conquer Mars? (or maybe Venus?) With the Mars One project on the way, ...
8
votes
1answer
35 views

Loss of atmosphere on Mars

If the atmosphere on Mars was once much thicker, how was it likely lost? Was it due to interaction with the solar wind, the small size of the planet, both, or something else, and approximately how ...
6
votes
1answer
61 views

Why Did Mars lose its Magnetic Field?

I had heard that Mars once had a planetary magnetic field, but that it is now gone? What happened to it?
6
votes
2answers
63 views

Does the Moon Have Enough Water for Robert Zubrin's Mars settlement Plan To Work?

In Robert Zubrin's "The Case for Mars" he outlines a plan to settle Mars by(among other things) finding water and using electrolysis to break up water into Hydrogen and Oxygen. This provides fuel for ...
7
votes
1answer
37 views

Why does mars appear to retreat across the sky?

If you plot the movement of mars across the Earth's sky it appears to move back on itself during its orbit. Why does it appear to have a loop shape from Earth?