This image – produced in colour for the first time – clearly shows ice on the surface of Jupiter’s fourth largest moon Europa.
The blue-white colours show fairly pure water ice, whereas the reddish areas contain water ice mixed with hydrated salts – possibly magnesium sulfate or sulfuric acid.
This one image covers a approximately 101 by 103 miles.
The picture was created by combining two bits of data obtained by the Galileo spacecraft in the 1990s – one grayscale version in 1997, and another lower-res colour version in 1998 to create the new image.
Galileo was about 13,237 miles away from Europa when the first image was taken – and 89,000 miles away when it captured the second picture on its 14th orbit of Jupiter.
The combination of the two has left astrologists starry eyed.
Source Article from https://uk.news.yahoo.com/jupiter-moon-image-reveals-ice-104440554.html
Jupiter moon image reveals ice
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