🛰️ What Are Satellite Images? Satellite images are pictures of Earth (or other planets) taken from space by satellites equipped with cameras and sensors. They are used for mapping, weather forecasting, defense, science, agriculture, and navigation. 📸 Types of Satellite Images 1. Optical (Visible Light) Like regular photographs, captured in daylight. Used in Google Earth, maps, urban planning, and natural resource monitoring. 2. Infrared (IR) Detects heat and vegetation health. Common in agriculture, forest fire monitoring, water management. 3. Radar (SAR – Synthetic Aperture Radar) Uses radio waves instead of light. Works at night and through clouds. Important for military, flood monitoring, disaster mapping. 4. Multispectral / Hyperspectral Captures many wavelengths (beyond human vision). Identifies minerals, soil moisture, pollution, vegetation stress. 5. Thermal Imaging Detects temperature differences. Used for volcanoes, ocean currents, energy audits, and military surveillance. ...
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