Thermal Emission Imaging System

The Thermal Emission Imaging System (THEMIS) is a scientific instrument on NASA's Mars missions that captures images based on heat. It detects infrared radiation emitted by the planet’s surface, allowing scientists to analyze temperature differences across Martian terrain. This helps identify minerals, detect water-related features, and understand the planet's geology and climate. By mapping heat patterns, THEMIS provides valuable insights into Mars' surface composition and geological processes, supporting exploration and scientific research.