Could the planet Mars have been a fruitful planet like Earth?
...This bring us to the question of what would Earth look like millions of years from now if-and-when our world becomes another 'dead' planet....like Mars.
If you think the following images below are interesting, check out these artistic interpretations of what Mars may have looked like covered with water billions of years ago at this link.
If you like these, then you have to check out these renderings illustrating what Mars would have looked liked billions of years ago covered with water... Check 'em out at this link...!!