Talk:Mars

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To-do list for Mars:	edit · history · watch · refresh
There is no internal structure section for mars. Can someone please make one?

Archives

Archive 1 Archive 2 Archive 3

Contents 1 Martian Atmospheric Pressure 2 A Ecosystem Section Should be Added 3 Martian Fossils? 4 Mars like Earth?! 5 Image doubts 6 Climate 7 Phoenix Mars lander

[edit] Martian Atmospheric Pressure

The page has it for Mars at 1kPa versus 100kPa for earth. Now we're all familiar with the Mars Polar lander, which used a parachute [1] . So, can somone explain to me how in the world are they able to slow down the craft for landing by using a parachute given that there is practically no air? Either the atmospheric pressure in this section is wrong or the polar lander is somewhere in Antartica.

[edit] A Ecosystem Section Should be Added

I think this plant especially; and all other planets should have ecosystem sub-headings on the main page. Past, present, future or theoretical. —Preceding unsigned comment added by Rdailey1 (talk • contribs) 13:57, 24 March 2008 (UTC)

What would you put in there? As of yet, we do not know of any ecosystems outside Earth. It would be pointless to add a section for something we do not know exists yet. I suggest we put it in when they do find something ecological there. - Redmess (talk) 14:31, 27 May 2008 (UTC)

[edit] Martian Fossils?

When i looked up mars life i read an article that said and asteriod from mars came to earth. The scientists said that they saw strange worm like structures and crab like formations on it. I just thought it was cool what do you think?

See Life on Mars. IMO, until there's good evidence, it's safest to assume these are mineral formations. — kwami (talk) 23:59, 1 April 2008 (UTC)

[edit] Mars like Earth?!

"In addition to its geographical features, Mars’ rotational period and seasonal cycles are likewise similar to those of Earth."

This should be corrected! Mars' seasonal cycles are not at all like the Earth. Its year is 2 Earth years long, thus its seasons last twice as long. In addition, its orbit is much more elliptical than the Earths. Unlike the situation for the Earth, Mars' distance from the Sun does influence its seasons. This causes much more severe seasonal temperature changes than on the Earth. 20:39, 6 April 2008 (UTC)

Although they last twice as long as Earth's they are otherwise similar in their lengths respective to one another and intensity, as Mars' axial tilt is similar. Also, Mars' rotational period is only about forty minutes longer than Earth's day. --Patteroast (talk) 00:36, 27 April 2008 (UTC)

[edit] Image doubts

The image comparing the sizes of the Earth, Mars, Venus, and Mercury seems inconsistent with the radius. It is said that the radius of Mars is approximately half that of Earth, yet in the image, they seem to be of similar size. Is there something I am missing? —Preceding unsigned comment added by Candlefrontin17 (talk • contribs) 02:13, 11 April 2008 (UTC)

Maybe you are confusing Venus for Mars, Mars is far right in the image sbandrews (t) 20:25, 26 April 2008 (UTC)

sbandrews is right, the order of planets in the image is Mercury, Venus, Earth, Mars. Mars looks alot less red in this photo than you may be expecting. Ph0t0phobic (talk) 12:02, 29 May 2008 (UTC)

[edit] Climate

There is an error in the climate section. It says in the climate section that the summer in the south pole can reach a temperature of 30 C. While this may be true, the conversion to F that is there is not correct. 30 C = 86 F, not 58 F. —Preceding unsigned comment added by Sorryseed (talk • contribs) 16:24, 25 May 2008 (UTC)

It does not say that temperatures reach 30 Celsius at the South Pole! It just says it gets 30 degrees Celsius warmer in the southern hemisphere summer than it does in the northern hemisphere summer. The conversion from Celsius to Fahrenheit is also wrong. A change of thirty degrees Celsius is equivalent to a change of 54 degrees of Fahrenheit not 86 degrees of Fahrenheit. You do not need to add the 32; you are not adjusting for the Fahrenheit Celsius scale constant differences, in this case. Otherwise, a zero degree change in Celsius would be the equivalant to 32-degrees of change in Fahrenheit. No, a zero degree change in Celsius is the same as a zero degree change in Fahrenheit. I've changed the 86 to 54 but possibly the original 58 F was the real difference in summer temperatures, given by NASA perhaps, and the 30 Celsius conversion was just a nicely rounded down whole figure from that?—Preceding unsigned comment added by 93.96.122.175 (talk) 03:29, 31 May 2008 (UTC)

[edit] Phoenix Mars lander

Phoenix Mars lander should be moved from future missions to current missions. 24.83.103.120 (talk) 00:13, 26 May 2008 (UTC)