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
