The Martian Chronicles that came to start over on the planet. First appeared in "The Martian Chronicles". The next several chapters describe the transformation of Mars into another Earth. Small towns similar to those on Earth begin to grow. In "The Green Morning", Benjamin Driscoll makes it his mission to plant thousands of trees on the red plains to increase oxygen levels. Due to some property of the Martian soil, the trees grow into a mighty forest overnight. First appeared in "The Martian Chronicles". This vignette concerns the swift colonization of Mars. The title refers to the rockets and settlers which quickly spread
Stability of the Solar System essentially the distance from sun to earth). These are now known as the Kirkwood gaps. Some asteroids were later discovered to orbit in these gaps, but their orbits are unstable and they will eventually break out of the resonance due to close encounters with a major planet. Another common form of resonance in the Solar System is spin–orbit resonance, where the period of spin (the time it takes the planet or moon to rotate once about its axis) has a simple numerical relationship with its orbital period. An example is our own Moon, which is in a 1:1 spin–orbit resonance