Saturn’s Colorful Rings

This colorful image shows a section of Saturn’s beautiful rings, four centuries after they were discovered by Galileo Galilei. Saturn’s rings were first observed in 1610 by Galileo. Despite using his newly created telescope, Galileo was confounded by what he saw: he referred to the peculiar shapes surrounding the planet as “Saturn’s children.” Only later did Christiaan Huygens propose that the mysterious shapes were actually rings orbiting the planet. These were named in the order in which they were discovered, using the first seven letters of the alphabet: the D-ring is closest to the planet, followed by C, B, A, F, G and E. The variation in the color of the rings arises from the differences in their composition. Turquoise-hued rings contain particles of nearly pure water ice, whereas reddish rings contain ice particles with more contaminants. 

Credit: NASA/JPL/University of Colorado

Reflections in Nebula NGC 1333

Nebula NGC 1333′s gas and dust clouds reflect the light of the stars in and around the Nebula. Because the gasses are not given enough energy from their stars to become charged, they reflect light at the same frequencies as the surrounding stars. This “reflection” is what causes some areas of the nebula to differ in color (aka their frequency spectrum). In the above image we can see several distinct regions of reflections: red, green, and light blue. Science can be really beautiful! 

Credit: NASA/JPL/Spitzer & Cal-tech