NASA's Juno Mission Reveals Jupiter's Complex Colors
by Staff Writers
San Antonio TX (SPX) Sep 02, 2022
NASA's Juno spacecraft observed the complex colors and structure of Jupiter's clouds as it completed its 43rd close flyby of the giant planet on July 5, 2022.
Citizen scientist Bjorn Jonsson created these two images using raw data from the JunoCam instrument aboard the spacecraft. At the time the raw image was taken, Juno was about 3,300 miles (5,300 kilometers) above Jupiter's cloud tops, at a latitude of about 50 degrees. North is up. At that moment, the spacecraft was traveling at about 130,000 mph (209,000 kilometers per hour) relative to the planet.
The first image (left) was processed to portray the approximate colors that the human eye would see from Juno's vantage point. The second image (right) comes from the same raw data, but in this case Jonsson digitally processed it to increase both the color saturation and contrast to sharpen small-scale features and to reduce compression artifacts and noise that typically appear in raw images.
This clearly reveals some of the most intriguing aspects of Jupiter's atmosphere, including color variation that results from differing chemical composition, the three-dimensional nature of Jupiter's swirling vortices, and the small, bright "pop-up" clouds that form in the higher parts of the atmosphere.
More information about NASA citizen science can be found here
Underwater snow gives clues about Europa's icy shell
Austin TX (SPX) Aug 18, 2022
Below Europa's thick icy crust is a massive, global ocean where the snow floats upwards onto inverted ice peaks and submerged ravines. The bizarre underwater snow is known to occur below ice shelves on Earth, but a new study shows that the same is likely true for Jupiter's moon, where it may play a role in building its ice shell. The underwater snow is much purer than other kinds of ice, which means Europa's ice shell could be much less salty than previously thought. That's important for mission s ... read more
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