ABSTRACT

This chapter describes something about each planet and summarizes the temperatures in tabular form at the end. Particle radiation in space consists of three primary types: magnetically trapped charged particles around planets with significant magnetic fields, galactic cosmic rays, and solar energetic particles. The maximum temperatures are often speculative based on the mass, pressure, and gases present in the atmosphere. According to National Aeronautics and Space Administration (NASA), evidence suggests that shadowed polar craters that never receive sunlight may be as low as -193°C. NASA currently has a mission ongoing around Mercury known as the Messenger Mission. NASA estimates a typical mission to one of Jupiter’s moons, Europa, would experience 2–3 MRad of total electron dose in a year. The behavior of charged and other particles trapped in the magnetic bubble around Saturn is of great interest to physicists. Both Uranus and Neptune are considered deep space and are classified as having 10 krad of total dose per year.