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2024 June 23

The Colors of Saturn from Cassini Image Credit: NASA, ESA, JPL, ISS, Cassini Imaging Team; Processing & License: Judy Schmidt

Explanation: What creates Saturn’s colors? The featured picture of Saturn only slightly exaggerates what a human would see if hovering close to the giant ringed world. The image was taken in 2005 by the robot Cassini spacecraft that orbited Saturn from 2004 to 2017. Here Saturn’s majestic rings appear directly only as a curved line, appearing brown, in part from its infrared glow. The rings best show their complex structure in the dark shadows they create across the upper part of the planet. The northern hemisphere of Saturn can appear partly blue for the same reason that Earth’s skies can appear blue – molecules in the cloudless portions of both planet’s atmospheres are better at scattering blue light than red. When looking deep into Saturn’s clouds, however, the natural gold hue of Saturn’s clouds becomes dominant. It is not known why southern Saturn does not show the same blue hue – one hypothesis holds that clouds are higher there. It is also not known why some of Saturn’s clouds are colored gold.

∞ Source: apod.nasa.gov/apod/ap240623.html

By cabinsinthewoods

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Autumn 2024 is almost here!

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Saturn - March 11 2006

Image Credit: NASA/JPL-Caltech/CCI/CICLOPS/Kevin M. Gill

This image shows knots of cold, dense interstellar gas where new stars are forming. These Free-floating Evaporating Gaseous Globules (frEGGs) were first seen in Hubble’s famous 1995 image of the Eagle Nebula. Because these lumps of gas are dark, they are rarely seen by telescopes. They can be observed when the newly forming stars ignite, their intense ultraviolet radiation eroding the surrounding gas away and letting the denser, more resistant frEGGs remain. These frEGGs are located in the Northern Coalsack Nebula in the direction of Cygnus.

Credit: NASA, ESA, and R. Sahai (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of America)

This photo of Comet Leonard was taken from a remote facility in Namibia.

SpaceWeatherGallery.com/Lukas Demetz / Michael Jaeger

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Pixabay

gateway to autumn (via All sizes | Gate to Autumn | Flickr - Photo Sharing!)

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