Earth-Mars Planet Comparisons

This is a visualization showing the relative size of Mars compared to that of Earth. This version uses false color textures (there are corresponding true color versions as well). The colors correspond to the heights above/below 'sea level.' This version also includes pole axes and an orbit plane.
Credit: NASA/Goddard Space Flight Center
Scientific Visualization Studio

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Howto & Style

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• Earth
• Mars
• Planet
• Comparisons

[43bountyhunts]

@luvdomus how do you know that

[Arkwald]

@snlker Did you complete 5th grade math? If you did you would realize that the equations used to describe a sphere are different than a square or cube. If Mars has a radius of ~3,300km that must mean it's circumference is 20,737km (2 &#928 r). Since Mariner Valley would have to be laid out ALONG that circumference, surely there is enough room for a 4,000km long canyon.

[luvdomus]

@snlker You're a nut.

[snlker]

@luvdomusSo says the official claim. Actually, If you use Mariner Valley as a measure stick at about 2800-3000 miles long, on good Hubble pics ,you can see the valley seems to indicate Mars is about the same size if not slightly bigger than Earth . NASA has been caught in so many lies its not funny.They contradict themselves all the time. Mars is not the tiny dead world they say it is. Mars is a living breathing planet with water, water clouds and life.Yes ,there are forests as well,I have pics

[luvdomus]

@snlker The diameter of Earth is 7926 miles; the diameter of Mars is only 4200 miles. Earth is about twice the size of Mars.

[Cosmored]

If they faked the moon missions, it's possible that they faked the Mars missions too. Do a YouTube search on "MarsFaker".

Google "The Naked Scientists". Go to the "New Theories" section of the forum. There's a thread entitled "Did We Land on the Moon?". On page 15 there's a summary of moon hoax evidence.  It's the seventh post from the top.

[NoSpeechForTheDumb]

The last thing space needs is another earth.

[rayoflight001]

I think using somekind of shields in space to filter the charged solar particles and protect the atmospere could work in the distant future. I believe we will inhabit mars oneday because it's what we do as humans. It's only nonsense like religion that holds mankind back. It's our destiny to colonize space. :)

[rayoflight001]

The main problem with terraforming is the lack of magnetic field. There is enough gravity on mars to hold onto an earth type atmosphere, enough water to form oceans and even enough CO2 locked up. However this liberated CO2 and H2O would begin to be broken up and stripped by the solar wind hitting mar's upper atmoshere unimpeded by an earth type magnetic field.

[wildalienplanet]

earth and mars have almost the same time for one rotation because earth spins twice as fast as mars,but earth is also twice as big, and vice versa, mars is half as big and twice as slow as earth. similar axis of rotation also cause similar seasons