Explores the physics and chemistry of the atmospheres of Mars, Venus, Jupiter, Saturn, and Titan. Examines evolution of the atmospheres of Earth, Venus, and Mars; and the escape of gases from the Galilean satellites, Titan and Mars; the orbital characteristics of moons, planets, and comets. Uses recent results of space exploration. Elective for APS major and minor. Prereq., PHYS 1110-1120, and either MATH 1300-2300, or APPM 1350-1360, or instructor consent. Same as ASTR 3720. Prerequisites: Restricted to students with 57-180 credits (Junior or Senior) Astronomy (ASTR) or Atmospheric & Oceanic Sciences (ATOC) majors only.