What are multispectral sensors?

A multispectral sensor is like having several eyes that see different colors at once.

Imagine you have a toy box full of colored blocks, red, blue, green, and yellow. Now imagine instead of just one eye looking at the box, you had four eyes, each seeing only one color. That’s what a multispectral sensor does, it uses multiple “eyes” to see different parts of the light spectrum.

Each eye (or sensor) captures one part of the light, like how your eye sees red or blue. A regular camera is like having just one eye that sees all the colors mixed together. But a multispectral sensor has many eyes, and it can tell apart each color individually.

This helps scientists see things in more detail. For example, they might use it to check how healthy plants are, green means they’re happy, but if there's more red or blue light, that could mean something is wrong. It's like giving your toy box a superpower to know exactly what each block is without touching them!