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Originally posted by vze2xjjk
Mars surface is so rocky that most of the bones,lighter than rock,will remain at the surface and NOT sink in,asthey would be buried on Earth.
Originally posted by songokudbz
I've seen a photo with mars and it has grass ( a nasa photo ) but don't remember where.
The European Space Agency's Mars Express Orbiter has been exploring the Red Planet from an altitude of 300 km. Its high resolution stereo camera has been sending back extraordinary color images. Some, like Gusev crater in which the Spirit rover landed, have green areas.
Some like the Reull Vallis ancient river channel, shown here, contain blue and blue-green regions. What causes the green, blue and blue-green colors in the Martian geography? Current scientific speculation includes mineral deposits, soil moisture and maybe even algae.