Geology of Mars time. This section introduces several of the larger physiographic regions of Mars. Together, these regions illustrate how geologic processes involving volcanism, tectonism, water, ice, and impacts have shaped the planet on a global scale. The northern and southern hemispheres of Mars are strikingly different from each other in topography and physiography. This dichotomy is a fundamental global geologic feature of the planet. Simply stated, the northern part of the planet is an enormous topographic depression. About one-third of the planet’s surface (mostly in the northern hemisphere) lies 3–6 km lower in elevation than the southern two-thirds. This is a first-order
Crash of the Moons Crash of the Moons Crash of the Moons is a 75-minute 1954 American science fiction film, consisting of three consecutive episodes of the television series "Rocky Jones, Space Ranger", which constituted a complete story. It was released only on 16mm for home movie rental and television syndication. It was directed by Hollingsworth Morse. This film is currently in the Public Domain. Rocky Jones attempts to save the inhabitants of Ophiuchus (pronounced "officious" in the film), a planet about to collide with a moon. However, Cleolanta - the empress of the planet - is suspicious. While Rocky and his crew succeed