The southern polar vortex on Venus (measurements at 3.8 microns)
Date: 07 Apr 2011
This image sequence shows thermal infrared radiation (at a wavelength of 3.8 microns) emitted by the cloud-tops at the southern polar region of Venus, as viewed by the VIRTIS imaging spectrometer on Venus Express. The scale has been inverted: white regions show cooler cloud, likely to be at higher altitude.
Last Update: 07 Apr 2011
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