What are the tiny dots that make a satellite image?

The tiny dots in a satellite image are individual pixels, which are the smallest units of the image that represent a specific area of the Earth's surface. Each pixel contains data about the light reflected or emitted from that area, often in multiple spectral bands. The resolution of the image depends on the size of these pixels; smaller pixels generally provide more detail. Together, they form a complete image by capturing various features of the landscape, such as vegetation, water, and urban areas.