Satellite images of Europe: combining the visible and infrared wavelength
The Meteosat Second Generation (MSG) satellites monitor the Earth weather 24/7 from the geostationary orbit.
The satellite image of Europe is composed by using both the infrared and the visible light channel from the satellite. Because there are no usable visible light images during the night this composition of channels gives us an image that can be used to observe the clouds by day and by night. The pixelated artifacts are due to the lower resolution of the infrared channel.