Here are two faders that let you look at the same scene with different satellite images. Use the first one to compare how different cloud types appear in visible images(0.6 micron) versus IR images(11 microns) and water vapor (6.7 microns) images.

Use the fader below to compare visible and IR images of the same scene when the sun has set on the east coast but is still shining in the central and western United States.