Taking its first peek at Uranus, NASA Hubble Space Telescope's Near Infrared Camera and Multi-Object
Spectrometer (NICMOS) has detected six distinct clouds in images taken July 28,1997.
The image on the right, taken 90 minutes after the left-hand image, shows the planet's rotation.
Each image is a composite of three near-infrared images. They are called false-color images because the human eye cannot detect infrared light.
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Therefore, colors corresponding to visible light were
assigned to the images. (The wavelengths for the 'blue,' 'green,' and 'red' exposures are 1.1, 1.6, and 1.9 micrometers,