Jupiter: At The Belt-Zone Boundary . ... Credit Copyright: The Galileo Project , JPL , NASA Explanation: Jupiter's thick atmosphere is striped by wind-driven cloud bands that remain fixed in latitude - dark colored bands are known as belts while light colored bands are zones. ... Near infrared images recently returned by the Galileo Spacecraft were mapped to visible colors in this close-up of a belt-zone boundary near the gas giant's equator. ... NASA Web Site Statements, Warnings, and Disclaimers . ...