Amazing raw Cassini images from this week

August 22, 2014 by Elizabeth Howell, Universe Today
Sunlight and shadow combine in this photo of Saturn and its rings taken Aug. 19, 2014. Credit: NASA/JPL/Space Science Institute

When Saturn is at its closest to Earth, it's three-quarters of a billion miles away—or more than a billion kilometers! That makes these raw images from the ringed planet all the more remarkable.

Nearly every day, the Cassini spacecraft beams back what it sees at Saturn and the images are put up on this NASA website. This week, for example, it was checking out Saturn's rings. We have a few of the pictures below, plus an older picture of the entire planet for reference.

Saturn's rings are believed to be about 4.4 billion years old—that's close to the age of the Solar System itself. Astronomers, however, have only known about them since the 1600s, when Galileo Galilei was trying to make sense of some funny-looking shapes on either side of the planet in his telescope.

According to NASA, the particles in the rings range from dust-sized to mountain-sized. Some of Saturn's dozens of moons act as shepherds to the rings, keeping gaps open. You can read more about what we know about their origins here.

aturn and its rings, as seen from above the planet by the Cassini spacecraft. Credit: NASA/JPL/Space Science Institute. Assembled by Gordan Ugarkovic.

Different shades shine in this raw image of Saturn’s rings taken by the Cassini spacecraft taken Aug. 19, 2014. Credit: NASA/JPL/Space Science Institute

Bands prominently feature in this raw picture of Saturn taken by the Cassini spacecraft Aug. 17, 2014. Credit: NASA/JPL/Space Science Institute

The Cassini spacecraft looks to the side of Saturn’s rings in this picture from Aug. 19, 2014. Credit: NASA/JPL/Space Science Institute

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