And it mirrors the strategies that scientists have for terraforming Mars. One of the most important commonalities between Mars and Arrakis: vast water resources trapped beneath the planet's surface.

With NASA hoping to send humans to Mars in the 2030s and Elon Musk touting SpaceX's sci-fi-level plans for colonizing the Red ...

The same greenhouse gasses that pollute the Earth would be key to warming Mars. The following options are among the methods being considered. For safety reasons, the settlers may need to leave the ...