Polar satellites are spacecraft that orbit the Earth in a north-south direction, passing over the poles. This unique orbit allows them to cover the entire surface of the Earth over time, making them ideal for monitoring weather patterns, climate changes, and land use. They typically operate at altitudes ranging from 600 to 800 kilometers. These satellites are equipped with various sensors and cameras to collect data. For example, NASA and NOAA use polar satellites to gather information for weather forecasting and environmental studies. Their ability to provide consistent and comprehensive data makes them essential tools for scientists and researchers.