How can you compare and contrast Earth and Mars?
How do Mars and Earth compare chemically?
What are some characteristics of the structural composition of planet Mars? What if earth shift to Mars orbit? What would be different if Mars had complex life around our level of civilization, and had a similar biosphere to earth? What if Earth were to shift to Mars’ orbit? How is Mars' gravitational field strength different from that of Earth's? How could water be produced on Mars? How plausible is the science in The Martian? What are some of the science errors in the martian? What is the relationship between chemistry and the earth sciences? How can scientists know if there is water on Mars? Why does mars have two moons? What is likeliness of colonizing Mars, compared to the moon, or under the ocean? What are the two moons of Mars? Does water exist on mars? If early Earth's water came via comets and meteors does our Moon and Mars also contain an equivalent amount of the same water? What would be the gravity in Mars? How was all the perchlorate on Mars formed? What made scientists search for tectonic plates in Mars? How can we terraform Mars in decade? What is gravity on Mars? Is there gravity in mars? What happened to the water on Mars? Should we terraform Mars? What would happen if we deposit life on Mars with all the adequate resources for it? Will it adapt/evolve to survive the climate of Mars? Was there water on Mars if so how did it disappear and how earth avoided it? How can we terraform Mars? Are there any ideas or speculations as to where the water went on Mars? Is it true that they found liquid water on Mars? And what does this mean for us? Can we terraform Mars? How were tectonic plates discovered in Mars?