Unprecedented Detail of Saturn Captured by Webb and Hubble Telescopes

By integrating infrared observations from the NASA/ESA/CSA James Webb Space Telescope with visible-light images from the NASA/ESA Hubble Space Telescope, astronomers have unveiled a stunning new perspective of Saturn, showcasing its atmospheric bands, storms, and brilliantly reflective rings.



Comparative images of Saturn in infrared (Webb, left) and visible light (Hubble, right). Image credits: NASA/ESA/CSA/STScI/A. Simon, NASA-GSFC/M. Wong, University of California/J. DePasquale, STScI.

A newly released image of Saturn emphasizes the dynamic features of the gas giant’s vibrant atmosphere.

Webb’s observations reveal a long-lived jet stream, referred to as a “ribbon wave,” traversing the northern mid-latitudes, influenced by atmospheric waves that are difficult to detect otherwise.

A small dot just below the jet stream indicates the remnants of the 2011-2012 “Spring Storm.”

Additionally, several storms scattered across Saturn’s southern hemisphere are evident in the Webb image.

The astronomers noted, “All these atmospheric formations are shaped by powerful winds and waves beneath the visible cloud layer, making Saturn an ideal natural laboratory for studying fluid dynamics under extreme conditions.”

“The iconic hexagonal jet stream at Saturn’s north pole, discovered by NASA’s Voyager spacecraft in 1981, displays some sharp edges that are also faintly visible in both images.”

“It continues to be one of the solar system’s most intriguing weather phenomena.”

“Its persistence over decades underscores the stability of particular atmospheric processes on giant planets.”

“These famous hexagons are likely to be observed in high resolution for the last time until the 2040s, when Arctic winters shift into 15 years of darkness.”

Recent Webb observations indicate that Saturn’s poles appear a distinct gray-green, emitting light at approximately 4.3 microns.

The researchers suggest, “This unique coloration might arise from a layer of high-altitude aerosol in Saturn’s atmosphere, scattering light differently in those latitudes.”

“Another possibility includes auroral activity, wherein charged particles interacting with the planet’s magnetic field produce a glowing luminescence near the poles.”

In Webb’s images, Saturn’s rings are notably bright due to their composition of highly reflective water ice.

The scientists explained, “Both images depict the ring’s surface illuminated by the sun; however, the Hubble image shows less illumination, creating a shadow beneath the planet.”

“Subtle features of the ring, like spokes and patterns in the B ring (the thick central region), exhibit differences between the two observatories.”

“The outermost ring, known as the F ring, appears thin and sharply defined in the Webb image, but glows only faintly in the Hubble image.”

“Saturn’s orbit around the sun, combined with Earth’s position in its annual path, dictates the varied angles from which we observe Saturn’s face and rings.”

“These observations from 2024, captured 14 weeks apart, indicate that Earth is moving away from northern summer and approaching the 2025 equinox.”

“As Saturn transitions into the southern spring and late southern summer of the 2030s, both Hubble and Webb will increasingly enhance their views of its hemisphere.”

Source: www.sci.news

Unlocking the Secrets of Jupiter and Saturn: How Polar Cyclones Expose Hidden Interiors

A groundbreaking study by planetary scientists at the Massachusetts Institute of Technology (MIT) reveals how the significant differences in polar vortex patterns between Jupiter and Saturn are influenced by the unique properties of their deep interiors. These findings offer valuable insights into the structure of these gas giants.

This composite image, captured by the JIRAM instrument aboard NASA’s Juno satellite, depicts a central low-pressure system at Jupiter’s north pole along with eight surrounding low-pressure systems. The colors in this image represent radiant heat, revealing temperature variations in their cloud layers. Image credit: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM.

“Our study shows that the internal properties, including the softness of the vortex base, influence the fluid patterns observed at the surface,” explained Dr. Wang-Ying Kang from MIT.

The research was inspired by stunning images of Jupiter and Saturn obtained from NASA’s Juno and Cassini missions.

Since 2016, Juno has been orbiting Jupiter and revealing astonishing details about its north pole and intricate spiral formations.

The data suggest that each vortex on Jupiter is immense, measuring around 5,000 km (3,000 miles) in diameter.

Meanwhile, Cassini documented Saturn’s iconic polar vortex, which spans a singular hexagonal shape approximately 29,000 km (18,000 miles) wide, before its controlled descent into Saturn’s atmosphere in 2017.

“Despite their similarities in size and primary composition of hydrogen and helium, deciphering the differences in polar vortices between Jupiter and Saturn has been challenging,” noted MIT graduate student Jial Shi.

Researchers aimed to uncover the physical mechanisms behind the formation of either a single vortex or multiple vortices on these distant planets.

To achieve this, they employed a two-dimensional model of surface fluid dynamics.

While polar vortices are inherently three-dimensional, the fast rotation of Jupiter and Saturn leads to uniform motion along their rotational axes, allowing the team to effectively analyze vortex evolution in two dimensions.

“In rapidly rotating systems, fluid motion tends to be uniform along the axis,” Dr. Kang added. “This insight allowed us to convert a 3D challenge into a 2D problem, significantly speeding up simulations and reducing costs.”

With this in mind, researchers created a two-dimensional model of vortex behavior in gas giants, adapting equations that describe the evolution of swirling fluids over time.

“This equation is commonly used in various situations, including modeling cyclones on Earth,” Dr. Kang stated. “We tailored it for the polar regions of Jupiter and Saturn.”

Scientists applied the two-dimensional model to simulate fluid dynamics on gas giants in various scenarios, adjusting parameters such as planetary size, rotational speed, internal heating, and the characteristics of the fluid.

They introduced random “noise” to simulate initial chaotic fluid flow on the planets’ surfaces.

By analyzing how this fluid evolved over time across different scenarios, the researchers found that some conditions led to the formation of a single large polar vortex, akin to Saturn’s structure, while others resulted in multiple smaller vortices, similar to those on Jupiter.

Through careful examination of the parameters affecting each scenario, the study identified a unifying mechanism: the softness of the vortex base constrains the size that vortices can attain.

The softer and lighter the gas at the bottom of the vortex, the smaller the resulting vortex, enabling multiple smaller vortices to exist at Jupiter’s poles. Conversely, a denser and harder base permits the growth of sizable vortices, manifesting as a singular entity like Saturn.

If this mechanism holds for both gas giants, it could suggest that Jupiter has a softer internal composition, while Saturn may contain denser materials.

“The fluid patterns we observe on the surface of Jupiter and Saturn may provide insights into their interior compositions,” Shi remarked.

“This is crucial because Saturn’s interior likely harbors richer metals and more condensable materials, leading to stronger stratification than that found in Jupiter,” Shi added. “This will enhance our understanding of gas giant planets.”

The team’s findings will be published in the Proceedings of the National Academy of Sciences.

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Gial Sea & One In Can. 2026. Polar vortex dynamics of gas giant planets: Insights from 2D energy cascades. PNAS in press.

Source: www.sci.news

Has Saturn Been Struck? Astronomers Race to Uncover the Truth

The flash is highlighted in blue.

Mario Lana

It seems that something might have struck Saturn. If so, amateur astronomers could play a crucial role in validating this potential historical event for the gas giant.

Approximately seven asteroids or comets are predicted to collide with Saturn each year, yet these instances often go unnoticed. Currently, NASA employee and amateur astronomer Mario Lana is capturing images that may reveal such an occurrence.

Lana is part of a project called Detect, which employs software to scrutinize images of Jupiter and Saturn, aiming to identify any brief flashes caused by impacts. If these flashes are detected through various telescopes, it can help eliminate the chance of a glitch and confirm the impact.

Ricardo Fuso from the University of Basque Country in Spain is also engaged in detection efforts, but Lana’s flashes are described as a faint shock signature or just a bright pixel on the camera.” Specifically, astronomers are interested in footage of Saturn taken on July 5th UTC between 9:00 AM and 9:15 AM.

“If only one person witnessed this flash, then it might be an overstatement. Lee Fletcher at the University of Leicester, UK, commented, “If others also witnessed the flash, that’s fantastic; we confirmed an impact.”

Mark Norris, at the University of Central Lancashire in the UK, notes that the rising popularity of amateur astronomy and advances in telescope technology are beneficial. “There’s a good chance that someone has captured something they haven’t noticed yet or dismissed as a technical issue,” he notes.

That said, even if the impact is confirmed, the scientific value of the data may be limited due to insufficient information about the impacting object. Ideally, knowing its speed and mass in advance would facilitate observations, allowing us to assess the impact on known variables. This was the case in 1994 when Comet Shoemaker-Levy 9 impacted Jupiter.

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Source: www.newscientist.com

New discoveries reveal Saturn has 274 months of unseen phenomena

Teams of astronomers from Taiwan, Canada, the US, and France observe and bring in 128 additional moons orbiting gas giant Saturn The total number of confirmed months has reached 274. International Astronomy confirmed its discovery on March 11, 2025.

This image from Webb's Nircam Instrument shows some of Saturn, Rings and Moons. Image credits: NASA/ESA/CSA/STSCI/M. Tiscareno, Seti Institute/M. Hedman, University of Idaho/M. Elmutamide, Cornell University/M. Shorterter, SETI Institute/L. Fletcher, University of Leicester/H. Hammel, AURA/J. DEPASQUALE, STSCI.

Dr. Edward Ashton, a postdoctoral researcher at the Institute of Astronomy and Astrophysics at Academia Cynthia, and his colleagues used the Canadian French Hawaii Television Scope (CFHT) to repeatedly monitor the sky around Saturn between 2019 and 2021, combining multiple images with details to enhance the astronomical object.

This first run produced 62 months. And there are even more other objects that were not available at that time.

“I revisited the same empty fields for the third consecutive month in 2023, knowing that these are probably moons and are likely waiting more to be discovered,” Dr. Ashton said.

“Of course, we found 128 new moons. I don’t think Jupiter will catch up based on our predictions.”

All 128 new moons are irregular moons, objects photographed by host planets in the history of the solar system.

“These moons are several kilometers in size and could be all fragments of the originally captured moon that have been broken by violent collisions with other Saturn’s moons and passing comets.”

“The mystery within Saturn’s irregular lunar system was a key motivation for the latest search. Given the small numbers compared to the larger moons, it is possible that there has been a collision somewhere within the Saturn system within the last 100 million years.”

“If not, these moons would have now collided with each other and been blown away by the blacksmith.

In fact, most of the newly discovered moons are located near the Mundirfari subgroup of Saturn’s moon, and may be the location of the collision, taking into account its size, number, and orbital concentration.

“Our carefully planned, multi-year campaign has brought us a new moon jackpot that tells us about the evolution of Saturn’s irregular natural satellite populations,” Dr. Ashton said.

“I don’t think using current technology is much better than what’s already done for the moons around Saturn, Uranus, and Neptune.”

Source: www.sci.news

Saturn boasts a total of 128 new moons, surpassing all other planets combined

Saturn currently has a total of 274 moons

nasa/jpl/space science research institute

Another 128 months were discovered, orbiting Saturn, bringing the planet to a total of 274. It's more than what's around all other planets in the solar system. However, astronomers face problems as advances in telescope technology allow them to gradually find small planetary objects.

Edward Ashton Academia Sinica in Taipei, Taiwan and his colleagues have found a new moon with a telescope in Canada, France and Hawaii, revealing dozens who have previously avoided astronomers. They took several hours of imagery of Saturn, adjusted them through the sky for the movement of the planets, stacking them on top of each other, revealing objects that were otherwise too thin to be visible.

All new moons are 2 to 4 kilometres in diameter and could have been formed hundreds of millions or billions of years ago by collisions, Ashton said.

“These are tiny little rocks floating in space, so some people may not be doing anything,” Ashton says. “But I think it's important to have a catalog of all the objects in the solar system.”

The dot at the center of this image is one of the moons of Saturn's new “fuzzy blob”

edward ashton et al. (2025)

Despite the wealth of data collected by his team, these most recent months still only appear as “fuzzy blobs,” Ashton says. There are more powerful telescopes that can solve Moon in more detail, Many people have small areas of vision, but that would mean taking more images, he says.

The newly discovered moon is recognized by the International Astronomical Union (IAU) and Ashton and his team You now have the right to name it. Ashton, a Canadian, says he approached representatives of Indigenous Canadian people for suggestions, but also pondered the idea of ​​a kind of public naming contest.

Is there more moons there? Scientists have spent decades scanning the area around Saturn with an increasingly powerful telescope in recent years. In 2019, 20 new moons were found, and Ashton and his colleagues already 62 discovered Apart from the 128 that was recently discovered in 2023. Ultimately, further discoveries are likely to require advances in telescope technology, Ashton believes that thousands of moons are easily found in orbit around Saturn, and even discounting the small rocky remains found in the planet's rings.

Mike Alexandersen The Minor Planet Center, which records the planetary bodies of the IAU, says there are likely many moons in the solar system, as telescope improvements allow you to see small objects. He says he has to make a decision about what he doesn't do with the moon.

“I know that the IAU has decided not to prioritize naming anything smaller than a kilometer because of the number of months that are likely to exist. But that's not the same as they don't recognize it as the moon,” says Alexandersen. “Only if the spaceship goes to visit it would they name it.”

He suggests that the cutoff between the moon and the rock particles that form part of the planet's rings is probably between 1 kilometres and 1 meter in diameter. “In the end, it's probably going to be an IAU, not my decision. And it's probably going to be a relatively arbitrary kind of thing,” says Alexandersen.

Elizabeth's Day At Imperial College, London says one day there may even be commercial reasons to have an accurate map of the solar system. “You may want to extract resources from the asteroids and moons in your solar system, so make sure you understand what's important to that,” says Day.

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Source: www.newscientist.com

30 years later, the Sega Saturn remains a groundbreaking console ready to be rediscovered in retro gaming enthusiasts.

IIt’s one of the biggest injustices in video game history that the Sega Saturn is widely considered to be a failure. The console was released in Japan on November 22, 1994, almost two weeks earlier than the PlayStation, but has always been compared disparagingly to its rival. We hear that while Sony built high-end machine lasers intended to produce high-speed 3D graphics, Sega engineers had to add extra graphics chips to the Saturn at the last minute. I read that Sony’s Ken Kutaragi has provided creators with an even easier to use development system. We know that Sony used its power as a consumer electronics giant to take a financial hit and drive down the prices of Sega’s machines. That’s all true, but what’s always left unmentioned is the huge success of Japan’s Saturn launch and the extraordinary legacy left by Sega’s 32-bit machines.

What I remember is this. The Edge magazine reported from Akihabara, Tokyo, that its Japanese correspondent joined a line outside a major Laox computer game center to pick up one of the thousands of machines that fans had not yet reserved. I was trying to get it. Two and a half hours later, the author showed up with my purchase. Among them was a copy of Virtua Fighter, the best arcade fighting game of the year. It was a lucky purchase. Shelves around town were quickly emptying. Sega shipped an unprecedented 200,000 units that day.




The Saturn brought the feel of arcade titles like Daytona USA into your home. Photo: Justin Layton/Alamy

The following September, I joined Edge as a writer and stayed there for two years, coinciding with the creative peak of Saturn’s short life. What was clear to me at the time, and what still rings true today, is that Sega’s first-party output on this machine was one of the best of the decade. Arcade megahits “Sega Rally” and “Daytona USA” set the challenge for a new era of stylish 3D racers, while “Virtua Fighter 2,” “Fighting Vipers,” and “The Last Bronx” challenge the 1-on-1 brings complexity and depth to fighting games. Sega’s platform-exclusive titles were similarly vibrant and groundbreaking. Panzer Dragoon, Night Into Dreams, and Burning Ranger reinvented stalwart genres for a new generation with imaginative and rich visuals. But I also loved wacky experiments. There’s the toy-like platformer Clockwork Knight, the weird and frenetic puzzler Bakubaku Animal, and the self-consciously stupid Virtua Fighter Kids.

It’s often said that what Saturn lacked was support from third-party developers, but that wasn’t the case in Japan. Veteran shooter creator Treasure developed two of their best titles for this machine, Radiant Silvergun and Guardian Heroes. If you still want to play classic 2D shooter games, the Saturn is the way to go. Batsugan, Battle Garegga, and Darius Gaiden are all considered staples of the genre.




X-Men vs Street Fighter: Sega Saturn was the beginning of Capcom and Marvel’s relationship. Photo: ArcadeImages/Alamy

Atlus adapted the arcade hit Donpachi and created the underrated role-playing adventures Shin Megami Tensei: Devil Summoner and Princess Crown. For horror fans, there’s Warp’s survival thriller Enemy Zero, and Capcom created a Saturn port of Resident Evil that included exclusive mini-games and new enemies and costumes. Capcom also produced many of the best fighting games of the time, including X-Men: Children of the Atom (originally a home exclusive), X-Men vs. Street Fighter, and Darkstalkers 3. I put it into Saturn.

Sega also had decent developer support in Europe, with programmers who grew up on home computers having experience programming in the assembly language supported by the Saturn (the PlayStation had a much rarer development environment based on C). Core Design originally targeted Tomb Raider for machines (and also made the unfairly forgotten action-adventure Swagman for consoles). WipeOut brought Psygnosis. Gremlins loaded top-down brawler for both consoles. And Knutsford-based Traveler’s Tales, who would go on to create the Lego series, co-created the underrated racer Sonic R with Sonic Team. This was a great technology showcase for Saturn, with smooth frame rates and gorgeous transparency effects.

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The Saturn was innovative in other ways as well. Saturn Bomberman remains arguably the best title in Hudson’s explosive series, especially considering its support for chaotic 10-player matches with two multi-taps. The Saturn was the first major console to offer online gaming via a Net Link modem, and in 1997 it allowed players to participate in direct sessions of Sega Rally Championship and Virtual-On over the Internet. A party title that supported this technology was Shadows of the Tusk, a deck-building strategy role-playing game (years before the genre became mainstream) that came with its own physical card pack. Additionally, Sega’s 3D Control Pad, an analog controller designed specifically for Nights Into Dreams, outperformed the Nintendo 64’s pad by several weeks by market launch.

There was a period, perhaps for a year or two, when Saturn’s disappearance was inevitable. It held its own and rivaled everything that Sony and its lead development partner Namco could offer. Daytona vs. Ridge Racer, Virtua Fighter vs. Tekken, Virtua Cop vs. Time Crisis. And this rivalry has been an absolute boon for gamers, driving 3D game design and creating the technical expertise needed for the next generation of open-world 3D console titles. There’s a reason why refurbished and modified Saturns are still being sold on eBay and retro gaming sites 30 years after its release. They are often region-free and come with a switch to toggle between European 50Hz or NTSC 60Hz TV options. And that’s because the games I’ve mentioned here are still worth playing in their original form, their original home. Although the Saturn never really caught on as a mass market device, it was successful in many ways. When we think about the history of video games, we need to talk more about it.

Source: www.theguardian.com