27/10/2026
🛰️ What if you could see what the human eye can’t?
From hundreds of kilometres above Earth, satellites can reveal information that is completely invisible to us from the ground.
The secret? Light !
Our eyes only see a small part of the electromagnetic spectrum. But satellite instruments can detect wavelengths beyond visible light, including near-infrared and short-wave infrared.
Different wavelengths reveal different information.
1. Vegetation health
2. Water and moisture
3. Wildfires and burned areas
4. Changes across the Earth’s surface
By capturing how light is reflected and absorbed at different wavelengths, satellite instruments can turn invisible signals into information we can use.
That’s photonics giving us a different way to see our planet.
Inside Photonics
Swipe to discover how satellites see what our eyes can’t.
What should we look inside next? Tell us in the comments !