Nasa Pictures Planet Saturn

Video Gallery OF NASA Video Den SATURNCASSINI SOLSTICE MISSION: Images - NASA - Possessions Clothed in on the Gallery junior you can unusual object the very latest images, videos and supply from the Cassini-Huygens trade to Saturn, plus the spectacular excitement CASSINI SOLSTICE MISSION: Images - NASA - Possessions About Saturn Saturn; Rings; Titan; Moons; Magnetosphere; News & Be opposite Skillful Bits on Dione (Raw Vision) NASA PHOTOS - SATURN, MARS, Lair, MOON, PLANETS A cram of friends to photos of the planets from NASA. NASA offers spectacular photos of the planets that are free for standard use. Planetary Observe EXPLORATION: PLANETS: SATURN: Gallery - NASA - Possessions for planetary information published by NASA's SSE Possessions > Planets > Saturn > Gallery Featured Vision Reach TO THE PLANETS: SATURN Images from NASA's planetary exploration program. NSSDC Photo GALLERY: SATURN - Reach TO THE NSSDC! NSSDC Photo Gallery: Saturn - A cram of images of the planet Saturn, its costume jewelry, and its satellites Planetary Observe EXPLORATION: PLANETS: SATURN: Overview - NASA - Possessions When cruising a number of Saturn in primitive October 2004, Cassini captured a series of images that clasp been without interruption into this hard work international recyclable color perception CASSINI SOLSTICE MISSION: Images - NASA - Possessions Compared to the gas giant, the two moons outmoded on either side of Saturn materialize unusually frivolous in this Cassini perception. Tethys is on the mark of the image, under the Caricature PHOTOS OF Being SATURN Allegation SNAPPED BY NASA NASA's Cassini spacecraft tracked the initiate, evolution and dying of the major stream, or Brilliant Sickly Make out, to hit the ringed planet Saturn in two decades. NASA'S CASSINI ORBITER SNAPS Beyond words Scribble OF SATURN never-before-seen whole at Saturn and exposed upper information about the planet than one the same as attractive shots of Saturn's neighbor. [Vision credit: NASA]

Saturns Two Faced Moon Iapetus

View larger. Saturn's moon Iapetus, imaged by the Cassini spacecraft on March 27, 2015. You are looking here at nearly the entire "day" side of the moon. The difference in brightness across the moon's face - one side bright and one side dark - is real. Image via NASA / JPL / ESA Cassini spacecraft.

Here is a distant but fairly detailed color view of Saturn's third-largest, third-most-massive and most distant of the major moons, Iapetus. The moon is 1,471 kilometers / 914 miles wide. This view has been enlarged and sharpened. You're seeing the moon's day side here; see the terminator line, or line between light and dark on Iapetus, from about the 9 o'clock to 1 o'clock positions? The Saturn-orbiting Cassini spacecraft captured this view of the moon Iapetus through its Narrow Angle Camera, from a distance of 1 million kilometers / 621,000 miles. This view is looking down onto the far northern latitudes with the north pole of Iapetus visible roughly midway along the demarcation of this large Saturn moon's bright trailing side and darker leading side.

Iapetus is two-toned. Its surface is much darker on the moon's leading side, that is, the side that faces forward as Iapetus moves in orbit around Saturn. It is much brighter on its trailing hemisphere.

Iapetus orbits Saturn at a mean distance of 3.57 million kilometers / 2.22 million miles once every 79.32 days.

Iapetus is "kronesynchronous", in other words keeps the same face turned towards Saturn permanently, just as our own moon, which is "geosynchronous", does toward Earth. Thus we know that, as on Earth's moon, the orbital and rotational periods of Iapetus are the same.

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The darkness on Iapetus' leading side is thought to stem from a carbon-rich coating being formed as particles, mostly from Saturn's moon Phoebe (a suspected captured former Kuiper Belt Object), are being swept up.

The trailing side of Iapetus is, of course, being sheltered from this dust by the body of the moon itself.

There is also quite a difference in mean surface temperatures between the leading and trailing sides of Iapetus. The darker leading side (called Cassini Regio by planetary scientists) is warmer. It can warm up to minus 144 Celsius / minus 227 Fahrenheit. Meanwile, the brighter trailing side (Roncevaux Terra) does not get above minus 160 Celsius / minus 256 Fahrenheit.

At the winter poles of Iapetus, temperatures drop to minus 183 Celsius / minus 297 Fahrenheit.

Iapetus is almost certainly mostly ice, with a mean global density of 1.09 grams per cubic centimeter, only just above that of pure ice. There is a little rock, but less than 2% by mass.

One mystery is that the orbit of Iapetus is inclined by 15.43 degrees to Saturn's equator and to the plane of the other major moons of Saturn. The reason for this disparity between Iapetus and the other large moons of Saturn is unknown. I myself suspect that Iapetus was almost snatched from Saturn during the time when the four giant planets Jupiter, Saturn, Uranus and Neptune, jostled for position shortly after their formation. It would also explain, in my opinion, the large distance from Saturn for such a large moon.

Visible quite clearly in the photo above are the Turgis and Roland impact basins and the large Tibald and Turpin craters. Naimon Crater is visible on the limb at the three o'clock position.

Iapetus is also home to some of the tallest mountains in the solar system outside of the planet Mars, asteroid 4 Vesta and Jupiter's volcanic moon Io.

A nearly full-on view of Iapetus' bright trailing hemisphere. Image acquired by Cassini September 10, 2007.

Voyager Mountains on Iapetus. Image acquired by Cassini spacecraft September 10, 2007.

A view of Iapetus from only 1,651 km / 1,025 miles. Image acquired by Cassini spacecraft September 10, 2007.

A slim crescent Iapetus, in color. Image acquired by Cassini spacecraft September 9, 2007.

Bottom line: A distant but fairly detailed color view of Saturn's third-largest, third-most-massive and most distant of the major moons, Iapetus.

Cassini Celebrates 10 Years Exploring Saturn

It has been a decade when a robotic customer from Earth first soared over costume jewelry of ice and excited its engine to fall forever taking part in the contain of Saturn. On June 30, the Cassini appointment choice individual 10 time of exploring the planet, its costume jewelry and moons. The Cassini spacecraft, hauling the European Distance Agency's Huygens reach, into in the Saturn system on June 30, 2004, for a four-year primary appointment. In the same way as 2008, NASA has approved the appointment three extensions, allowing scientists an unprecedented surpass to observe wayfarer changes as the planet and its retinue in excess of one-third of their virtually 30-year-long trek around the sun.

"Having a muscular, long-lived spacecraft at Saturn has afforded us a wealthy surpass," assumed Linda Spilker, Cassini project scientist at NASA's Jet Propulsion Laboratory in Pasadena, California. "By having a decade here afterward Cassini, we assemble been secluded to view never-before-seen activities that are changing our image of how planetary systems form and what setting push specialty to habitats for life."

Late 10 time at Saturn, the pungent spacecraft has beamed base to Earth hundreds of gigabytes of mechanical data, enabling the newspaper of excellent than 3,000 mechanical reports. Vivid aptly a sampling, 10 of Cassini's top accomplishments and discoveries are:

-- The Huygens reach makes first landing on a moon in the farther solar system (Titan)-- Journeying of tireless, icy plumes on the Saturnian moon Enceladus-- Saturn's costume jewelry exposed as tireless and heavy -- a laboratory for how planets form-- Titan exposed as an Earth-like world afterward rain, rivers, lakes and seas-- Studies of Saturn's amazing northern stampede of 2010-2011-- Studies disclose radio-wave patterns are not together to Saturn's focus bend, as beforehand thought-- Trustworthy structures in the costume jewelry imaged for the first time-- Analyze of prebiotic chemistry on Titan-- Puzzle of the magnify, bright-dark happen of the moon Iapetus solved-- Cover whole see of the north ice-cold hexagon and discovery of giant hurricanes at every of Saturn's poles

Cassini in excess of its four-year primary appointment in 2008 and went on to yield dozens excellent flybys of Titan, Enceladus and Saturn's other icy moons unswerving its 10th anniversary in 2014. Credit: NASA

"It's unthinkably occupied to sum up 10 unfamiliar time of discovery in a depths list, but it's an obsessive preparation to cogitate about what the appointment choice be best remembered for common time in the far-off," Spilker assumed.

Treat details about each of these top-10 discoveries are here at:http://saturn.jpl.nasa.gov/news/cassinifeatures/10thannivdiscoveries/

In cavalcade of the 10th anniversary, members of the Cassini appear certain assured of their dearest images for a gallery, relating in their own writing what makes the images special to them. The gallery is here at:http://saturn.jpl.nasa.gov/news/cassinifeatures/10thannivimages/

Moment Cassini was originally qualified for a four-year study of the Saturn system, the project's engineers and scientists had high hopes that the appointment push remove on longer, and fated the system for strength. The spacecraft has been prominently clean, and from an trade deem, the central part limiting factor for Cassini's duration now is how noticeably propellant is left in its tanks. The appointment owes a amazing convention of its longevity to gain and well-run piloting by the mission's navigation and operations teams.

"Our appear has ended a respected job optimizing trajectories to save propellant, and we've astute to make evident the spacecraft to get the most out of it that we possibly can," assumed Earl Maize, Cassini project organizer at JPL. "We're proud to individual a decade of exploring Saturn, and we glance over blatant to common discoveries peaceful to draw from."

The Cassini-Huygens appointment is a friendly project of NASA, the European Distance Bureau and the Italian Distance Bureau. JPL, a division of the California Host of Tackle, Pasadena, manages the appointment for NASA's Science Task Directorate in Washington.

Credit: saturn.jpl.nasa.gov