The National Aeronautics and Space Administration (NASA) has shared another beautiful image beamed back by the Cassini spacecraft. The image shows Saturn moon Dione and craters that really stand out on the moon when sunlight falls on them with Sun directly behind the Cassini. Larger craters are more distinct in the view and NASA is calling it as ‘Rays of Creusa’.
Among these larger craters, some leave bright ray patterns across the moon, calling attention to their existence and to the violence of their creation.
Scientists have named the bright crater present on Dione as Creusa. The rays are brighter material blasted out by the impact that formed the crater. Scientists can use the patterns of ejecta (like these rays), to help determine the order of geological events on a moon’s surface by examining which features lie on top of other features.
This view looks toward the Saturn-facing side of Dione. North on Dione is up and rotated 31 degrees to the right. The image was taken with the Cassini spacecraft narrow-angle camera on Nov. 26, 2016 using a spectral filter which preferentially admits wavelengths of near-infrared light centered at 727 nanometers.
Cassini clicked the incredible photo at a distance of approximately 350,000 miles (560,000 kilometers) from Dione. Image scale is 1.8 miles (3 kilometers) per pixel.
Last year, Cassini revealed that just likeTitan and Enceladus, the two other moons of Saturn are already known for having a secretive ocean source under their icy crusts, Dione also has a subversive fluid source.
As said by the study reports, Dione’s secretive sea went deep into many kilometres depth and encompassed an extensive rough centre. If you observe the interior view of the Dione, it is fundamentally same to the interior of its neighbour moon Enceladus, whose South Polar Region sports gigantic planes of water vapour into space. However, the broken surfaces of Dione are indicating a tumultuous past of the planet.
A number of plumes have been found booming from lengthy tiger-stripe gorges spread across the craggy surface of Enceladus. In the near future, the continued study of the ice plumes may give way additional clues about the underground oceans, and the possibilities of the moon having the symptoms of existence or not.
The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA’s Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.