Tectonics of Mars southern highlands, and the Tharsis plateau. Much tectonic study of Mars seeks to explain the processes that led to the planet's division into these three provinces, and how their differing characteristics arose. Hypotheses proposed to explain how the two primary tectonic events may have occurred are usually divided into endogenic (arising from the planet itself) and exogenic (foreign to the planet, e.g., meteorite impact) processes. This distinction occurs throughout the study of tectonics on Mars. In general, Mars lacks unambiguous evidence that terrestrial-style plate tectonics has shaped its surface. However, in some places magnetic anomalies in the Martian crust that
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