", "I'm an explorer at heart. Close Encounter with Saturn's A-Ring This high-resolution image shows the outer edge of Saturn's A ring. In order of increasing distance from Saturn, the seven main rings run D,C,B,A,F,G,E. Impact Craters Reveal Details of Titan's Dynamic Surface Weathering First landing in the outer solar system. Cassini expanded our understanding of the kinds of worlds where life might exist. D. a gap between two mountain ranges on the Moon. Cassini represented a staggering achievement of human and technical complexity, finding innovative ways to use the spacecraft. The length of a day on Saturn: 10 hours, 33 minutes and 38 seconds. Cassini revealed in great detail the true wonders of Saturn, a giant world ruled by raging storms and delicate harmonies of … Saturn’s nearby moon, Mimas. Cassini-Huygens revealed Titan to be one of the most Earth-like worlds we’ve encountered and shed light on the history of our home planet. Cassini was, in a sense, a time machine. The A ring extends from 2.02 to 2.27 Saturn radii and has optical depths of 0.4 to 1.0. Cassini-Huygens revealed Titan to be one of the most Earth-like worlds we’ve encountered and shed light on the history of our home planet. I never had this overwhelming fascination with space — rather, I just slowly gravitated toward it. In revealing that Enceladus has essentially all the ingredients needed for life, the mission energized a pivot to the exploration of "ocean worlds" that has been sweeping planetary science over the past couple of decades. The division is named after the Italian astronomer, Giovanni D. Cassini … Its clarity is an excellent test of atmospheric steadiness and the telescope's optical quality. NASA.gov brings you the latest images, videos and news from America's space agency. Cassini mission data provides strong evidence that the northern hemisphere of the moon has been resurfaced with ice from its interior. Social Media Lead: 10 Cassini’s long mission enabled us to observe weather and seasonal changes on another planet. In revealing that Enceladus has essentially all the ingredients needed for life, the mission energized a pivot to the exploration of "ocean worlds" that has been sweeping planetary science over the past couple of decades. 2 ", "His spirit will continue to inspire us as we continue our quest to understand the Universe. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind. It's Likely, NASA Scientists Find, Saturn's Moon Titan Drifting Away Faster Than Previously Thought, Data From NASA's Cassini May Explain Saturn's Atmospheric Mystery, 10 Ways to Celebrate Pi Day with NASA on March 14, The First Global Geologic Map of Titan Completed, New Organic Compounds Found in Enceladus Ice Grains, NASA's Cassini Reveals New Sculpting in Saturn Rings, 10 Things: Unsolved Mysteries of Saturn's Moons, Cassini Finds Saturn's Rings Coat Tiny Moons, Scientists Finally Know What Time It Is on Saturn, NASA's Cassini Data Show Saturn's Rings Relatively New, NASA Research Reveals Saturn is Losing Its Rings at "Worst-Case-Scenario" Rate, Groundbreaking Science Emerges from Ultra-Close Orbits of Saturn, Dust Storms on Titan Spotted for the First Time, Cassini's Final View of Titan's Northern Lakes and Seas, And the Emmy goes to: Cassini's Grand Finale, Saturn's Famous Hexagon May Tower Above the Clouds, Cassini Significant Events 8/1/18 - 8/28/18, Saturn's Famous Hexagon May Tower Above the Clouds (ESA Release), Cassini Significant Events 6/27/18 - 7/31/18, NASA's Cassini Coverage Lands an Emmy Nomination. Cassini Arrives at Saturn Cassini arrived at Saturn in 2004, after a seven-year voyage. 2003) the disk appears 20 arcseconds across The rings are … Cassini's journey began in 1997, and it reached Saturn in 2004. It not only acquired a wealth of data that led to numerous discoveries, but also raised a new generation of planetary scientists, including myself. Get lots of good chemistry, physics and math background in college. NASA/ Phillips Davis StarChild Authors: The StarChild Team Cassini’s research focused almost exclusively on astronomy and became increasingly involved in this area during the Scientific Revolution and throughout his life. Collectively, Uranus and Neptune are referred to as ice giant planets. Dust and ice from Saturn's vast rings accretes onto the moons embedded within and near the rings. And never stop exploring your options. You don't have to be a genius to be successful. Amanda Barnett It is formed as a result of particles being removed from the area by the gravitational pull of Mimas, one of the smaller of Saturn's moons. Cassini carried a passenger to the Saturn system, the European Huygens probe—the first human-made object to land on a world in the distant outer solar system. Illustrations, artwork and infographics that reveal the inner workings of the Cassini mission. The Flagship-class robotic spacecraft comprised both NASA's Cassini space probe and ESA's Huygens lander, which landed on Saturn's largest moon, Titan. Curator: J.D. ", "The Ranger missions looked a lot more exciting to me than what I was doing at the time, and so I sent my resume off to JPL. D. Cassini. The plainest is the black Cassini Division between the A and B rings. NASA Official: So far, each of these worlds has been visited by only one brief spacecraft flyby (Voyager 2, in 1986 and 1989, respectively). Research Center (HEASARC). The largest of Scientists had long known that Mimas creates the Cassini Division — like the spacecraft, named for the 17th-century Italian-French astronomer Giovanni Cassini — the broadest gap in the rings. Cassini division [ kə-sē ′nē ] The large gap between Saturn's two most prominent rings (the outer A ring and middle B ring), appearing as a dark void but actually containing small amounts of opaque material. or more of Saturn's many moons on the tiny particles in the rings. First to sample an extraterrestrial ocean. The first map showing the global geology of Saturn's largest moon, Titan, has been completed and fully reveals a dynamic world of dunes, lakes, plains, craters and other terrains. In Gian Domenico Cassini …who, among others, discovered the Cassini Division, the dark gap between the rings A and B of Saturn; he also discovered four of Saturn’s moons. were known before space probes were able to visit the planet. the region. The upper limit to the width of Encke's division implies that the velocity dispersion of the ring particles is <10 -2 cm sec -1 . from Earth Currently (Nov./Dec. Cassini gap, the moon Mimas is responsible for clearing out any material in In 1675, Cassini discovered a narrow gap that splits Saturn's ring system into two parts, and the gap has since been known as the "Cassini Division." Its clarity is an excellent test of atmospheric steadiness and the telescope's optical quality. First to sample an extraterrestrial ocean. A ring particle in the Cassini division would go around Saturn twice for every time Mimas goes around once; this is called a "2:1 resonance orbit". ", "Ask lots of questions. ", "To be able now to work on projects that are flying to the planets has been really a dream. Astrophysics Science Division (ASD) at Lying between 1.95 and 2.02 Saturn radii and not devoid of particles, the Cassini division exhibits complicated variations in optical depth, with an average value of 0.1. Cassini scientists have found the ingredients for amino acids condensed onto ice grains emitted by Saturn's sixth-largest moon. Earth makes passes through the ring plane every 13 to 15 years, about every half Saturn year, and there are about equal chances of either a single or three crossings occurring in each such occasion. COSPAR, the Committee on Space Research, came to Pasadena on July 15. Lessons learned during Cassini's mission are being applied in planning NASA's Europa Clipper mission, planned for launch in the 2020s. 7 GSFC. Saturn: The Cassini Division is a fast-paced, cutting-edge novel that will keep you turning pages even as it raises larger questions about the nature of what it is to be human, and the implications of our never-ending push to find the next advancement in human knowledge. During NASA's Cassini mission's final distant encounter with Saturn's giant moon Titan, the spacecraft captured the enigmatic moon's north polar landscape of lakes and seas, which are filled with liquid methane and ethane. B. the division between terrestrial and Jovian planets. The planet also boasts a collection of exotic, and still mysterious, moons. The StarChild site is a service of the For the Farther out in the solar system, scientists have long had their eyes set on exploring Uranus and Neptune. The B-ring is the most opaque of Saturn's rings. There’s way more to Saturn than its rings. Having a plan is an excellent idea, but you also have to be willing to jump at unexpected opportunities. Scientists have developed a new prediction of the shape of the bubble surrounding our solar system. ", "My first personal connection with outer space occurred during the arrival of Voyager 2 at Neptune. NASA’s Cassini spacecraft burned up in Saturn’s atmosphere on Friday, after 20 years in space. The Cassini Division is a distance between two of Saturn’s rings, A and B. ", "The great thing about being at NASA is that there are jobs for all types—whether it's engineering, science, finance, communication, law. Cassini revealed the beauty of Saturn, its rings and moons, inspiring our sense of wonder. In 1730 a paper written much earlier by Giovanni Domenico Cassini entitled The Discovery of the Division in Saturn's Ring appeared in Volume X of the Mémoires de I'Académie Royale des Sciences. I've been here ever since. (search for Cassini for all available data), Impact Craters Reveal Details of Titan's Dynamic Surface Weathering, Infrared Eyes on Enceladus: Hints of Fresh Ice in Northern Hemisphere, More about Richard "Rick" Grammier (1955 - 2011), Are Ocean Planets Common? They require as much discipline as an athlete working to be a football player, or a musician attempting to land a recording contract. I love to explore new worlds, whether in our solar system, or here on Earth.". ", "Stay close to subjects that fascinate you personally, but also ask why is the subject important. Cassini-Huygens was a mission of firsts. Europa Clipper will make dozens of flybys of Jupiter's ocean moon to investigate its possible habitability, using an orbital tour design derived from the way Cassini explored Saturn. Despite its tiny mass, Minas is able to clear a gap as wide as the Cassini division. Currently (Nov./Dec. Be persistent. these gaps is called the Cassini division, after its French discoverer Jean The 2,980-mile (4,800-kilometre) wide division is … Cassini showed us the complexity of Saturn’s rings and the dramatic processes operating within them. StarChild Graphics & Music: Acknowledgments A study using Cassini data reveals a warming, high-altitude, hexagonal vortex emerging at Saturn’s northern pole. The alphabetical designation of Saturn's rings is historically based on their order of discovery ; rings A and B are the bright rings separated by the Cassini division. Very good views of the Cassini division, some cloud bands, and shading in north polar region. Cassini-Huygens was a mission of firsts. Most of my heroes have succeeded against the odds in some way. The shadows of Saturn's three bright rings and Tethys are cast onto the cloud tops. For more than a decade, NASA’s Cassini spacecraft shared the wonders of Saturn and its family of icy moons—taking us to astounding worlds where methane rivers run to a methane sea and where jets of ice and gas are blasting material into space from a liquid water ocean that might harbor the ingredients for life. Cassini's Grand Finale orbits pay off: Final dives tell the story of the previously unexplored region between Saturn and its rings. High Energy Astrophysics Science Archive It is about 4,800 kilometers wide, although this varies quite a Planetary Geologist and Science Systems Engineer, "Study hard and do what you love, then it doesn't feel like work.". First to orbit Saturn. 6 Cassini was born on June 8, 1625 in the Republic of Genoa- now a part of Italy. Cassini expanded our understanding of the kinds of worlds where life might exist. Saturn's axial tilt is 26.7°, meaning that widely varying views of the rings, which occupy its equatorial plane, are obtained from Earth at different times. In 1675, Cassini discovered that Saturn’s rings are separated into two parts by a gap, which is now called the “Cassini Division” in his honor. traveled since launch (7.9 billion kilometers). The Cassini division was named after the Italian astronomer, Giovanni D. Cassini (1625-1712) who discovered the division in 1675. What Cassini found at Saturn prompted scientists to rethink their understanding of the solar system. New analysis of data from NASA's Cassini spacecraft finds auroras at Saturn's poles may keep its atmosphere warm. New NASA research confirms that Saturn's rings are being pulled into Saturn by gravity as a dusty rain of ice particles under the influence of Saturn’s magnetic field. Whitlock … Cassini found Saturn’s satellites —Lapetus in 1671, Rhea in 1672 and Tethys and Dione in 1684. The most recent ring plane crossings were on 22 May 1995, 10 August 1995, 11 February 1996 and 4 September 2009; upcoming events will occur on 23 March 202… The paper, of course, was … "Because I took such a non-traditional path, I hope to serve as an example to others who may feel that they are too old to go after their dreams.". 10 Ways Cassini Mattered He shares with Robert Hooke credit for the discovery of the Great Red Spot on Jupiter, circa 1665. All will serve you well regardless of what you do. What Cassini found at Saturn prompted scientists to rethink their understanding of the solar system. In addition, he discovered the Cassini Division in the rings of Saturn in 1675. The view through the much narrower Encke Division… (Faint, outer rings G and E are not imaged here.) mission, planned for launch in the 2020s. Images collected during Cassini's superclose orbits in 2017 are giving scientists new insight into the complex workings of the rings. New research on nine craters on Saturn's largest moon Titan provides details about how weathering affects the surface – and what lies beneath. Shadings within the rings are even easier to discern. ", "When I was a little girl Sputnik was launched, and I was instantly drawn into the whole miracle of spaceflight and exploring the cosmos. New measurements of the mass of Saturn's rings reveal their age — and something they have in common with dinosaurs. The plainest is the black Cassini Division between the A and B rings. Cassini was, in a sense, a time machine. Cassini and the Division in Saturn's Ring. Mimas orbits Saturn once every 22 hours, and would-be particles in the Cassini Division would orbit once every 11-12 hours, so that the ratio of the orbit periods is close to 2 to 1. The Latest News, images and videos from the Cassini mission, which explored Saturn and its moons from 2004 to 2017. "Science and math are fascinating and fundamental. Planetary scientists have learned something significant: More than a quarter of the exoplanets they studied could be ocean worlds. Responsible NASA Official: Phil Newman, High Energy Astrophysics Science Archive We fly spacecraft around other planets; how much better can it get? ", "Science and math are part natural gifts and part practice. Europa Clipper will make dozens of flybys of Jupiter's ocean moon to investigate its possible habitability, using an orbital tour design derived from the way Cassini explored Saturn. Passion drives me, it fuels me, and it's what matters most to me. Cassini represented a staggering achievement of human and technical complexity, finding innovative ways to use the spacecraft. The Cassini division is A. a gap between two groups of asteroids in the asteroid belt. The Cassini Division is a wide, dark band located between Saturn's two most visible rings, in which the particle density is considerably lower than that inside the rings. 4 Saturn's ring system has gaps throughout it, though only a few of these gaps Research Center (HEASARC), Bill Dunford. The final Cassini Science Symposium, and other recent Cassini mission events. JPL has won an Emmy Award for Outstanding Original Interactive Program for its coverage of the Cassini mission's Grand Finale at Saturn. The most exciting moments are the 'aha moments' when a scientific problem that you've been wrestling with suddenly falls into place and begins to make sense. Infrared Eyes on Enceladus: Hints of Fresh Ice in Northern Hemisphere. Planetary Data System (search for Cassini for all available data), NASA Planetary Photojournal: Cassini-Huygens, Director, NASA Planetary Science Division: Myers ", "There will be times when you don't think you are doing the right thing, but don't make any hasty decisions. Cassini is such a fantastic mission. It revealed the processes that likely shaped the development of our solar system. These are the best of the best. 8 Explore the full archive of raw images collected by the Cassini mission from 2004 to 2017. In addition, he was the first to record observations of the zodiacal light. The Cassini division is caused by the pull of one of Saturn's moons called Mimas. Having a dream is a must. Cassini revealed Saturn’s moons to be unique worlds with their own stories to tell. Study lots of math. Cassini division is 2,800 miles across. The 90-mm refractor provided fine views of Saturn tonight with Cassini division very distinct. NASA's Cassini spacecraft has detected dust storms on Saturn's largest moon, making Titan the third Solar System body where such storms have been observed. Cassini was the fourth space probe to visit Saturnand the first to enter its or… And for a period of maybe 20 minutes, half hour, we were the only ones to see this alien world. If you are doing something that makes you happy, you will work hard at it and you will be successful. Kristen Erickson 2003) Saturn is 8+ A.U. 5 Additionally, in 1675, he discovered the ‘Cassini Division’, which is the narrow gap that separates Saturn’s rings into two parts. 3 A variety of potential mission concepts are discussed in a recently completed study, delivered to NASA in preparation for the next Decadal Survey—including orbiters, flybys and probes that would dive into Uranus' atmosphere to study its composition. C. a major division in the rings of Saturn that is visible from Earth. Using data from NASA's Cassini spacecraft, scientists found Titan drifting away from Saturn a hundred times faster than previously understood. From the narrow F ring, to the gaps in the A ring, to the Cassini Division, Saturn's rings are a masterpiece of gravitational sculpting by the moons. ", "Passion and tenacity, coupled with patience and humor. From deep below the soil at Earth’s polar regions to Pluto’s frozen heart, ice exists all over the solar system...and beyond. The image was taken on March 8, 2014. ", 4.9 billion miles traveled since launch (7.9 billion kilometers). Cassini’s long mission enabled us to observe weather and seasonal changes on another planet. I think making tons of money is overrated if you're not actively psyched about what you get to do all day. For more than a decade, NASA’s Cassini spacecraft shared the wonders of Saturn and its family of icy moons—taking us to astounding worlds where methane rivers run to a methane sea and where jets of ice and gas are blasting material into space from a liquid water ocean that might harbor the ingredients for life. This creates a resonance condition where the gravity of Mimas perturbs the Cassini particles and eventually ejects them. Cassini has returned thousands of great images. After 20 years in space — 13 of those years exploring Saturn — Cassini exhausted its fuel supply. Two important meetings of scientists took center stage for the Cassini team this month. "Be curious about everything -- take every opportunity that presents itself to learn new things. This is the “gap” you’ll see when you look at Saturn through a telescope, or images of Saturn taken through a telescope, but it’s no gap—there is ring material in there. ring system has gaps throughout it, though only a few of these gaps were known before space probes were able to visit the planet. The limb of the planet can be seen easily through the 3,500-kilometer-wide (2,170 mile) Cassini Division, which separates ring A from ring B. : the dark region between the two brightest rings of Saturn A sequence of smoothly undulating brightness fluctuations is observed in the outer Cassini division within a band located between Cassini division120,000 and 121,900 km from the centre of Saturn. Because of his numerous contributions to our knowledge about the planet Saturn, Cassini was chosen as the name of the spacecraft flying to Saturn. The gaps are produced by the gravitational pull of one First landing in the outer solar system. After a series of nearly two dozen nail-biting dives between the planet and its icy rings, Cassini plunged into Saturn’s atmosphere on Sept. 15, 2017, returning science data to the very end. Whether you're doing it for the nerd cred or the pie, this week on #10Things, we've got all the ways you can celebrate #PiDay with NASA. The Cassini spacecraft looks between Saturn's A and B rings to spy structure in the Cassini Division. New data from NASA's Cassini spacecraft may solved a longstanding mystery. Former Director for Solar System Exploration. Before the mission ended, Cassini’s was an already powerful influence on future exploration. Data-driven science visualizations and captivating digital animations. bit around the planet. And so, to protect moons of Saturn that could have conditions suitable for life, Cassini was sent on a daring final mission that would seal its fate. The Cassini Division, about 4700 km wide, lies between Saturn’s A-ring and B-ring. The Cassini–Huygens space-research mission , commonly called Cassini, involved a collaboration between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites. Cassini showed us the complexity of Saturn’s rings and the dramatic processes operating within them. No human had ever seen this landscape before. On the other hand, Christiaan Huygens … We estimate the ability of Saturn's satellites to open other gaps in the rings. Dr. Alan Smale (Director), within the It is almost as wide as the planet Mercury. Site Manager: Just because it isn't always easy doesn't mean you can't do it and do it well. The Cassini division is located at the upper left. The following week was dedicated to PSG #75, the Cassini Project Science Group meeting at JPL. Dr. Lori Glaze This site is maintained by the Planetary Science Communications team at, Cassini carried a passenger to the Saturn system, the European. Cassini revealed the beauty of Saturn, its rings and moons, inspiring our sense of wonder. ", "Sometimes you have to tackle a problem from many different ways to understand it and you should never be afraid to ask for help. StarChild Project Leader: Dr. Laura A. Cassini revealed Saturn’s moons to be unique worlds with their own stories to tell. Titan visible near 10:00 position, north up, mirror reverse image. Saturn retrograding in Sagittarius and near 6:30 position of the star, Albaldah. 4,800 kilometers wide, lies between Saturn 's rings one of Saturn 's A-Ring this high-resolution image the! Hard at it and you will work hard at it and you will work hard it! Or here on Earth. `` measurements of the moon has been a! Close Encounter with Saturn 's sixth-largest moon Grand Finale at Saturn in 2004, its. 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