Saturn’s rings might disappear pretty soon astronomically speaking, according to new research. A new analysis of data captured by NASA’s Cassini mission, which orbited the planet between 2004 and 2017, has revealed new insights into when the seven rings were formed and how long they might last. During Cassini’s Grand Finale, when the spacecraft completed 22 orbits in which it passed between Saturn and its rings, the researchers observed that the rings were losing many tons of mass per second, which means the rings will only be around another few hundred million years at most. “We have shown that massive rings like Saturn’s do not last long,” said Paul Estrada, research scientist at NASA’s Ames Research Center in Mountain View, California, and a coauthor of the studies, in a statement. “One can speculate that the relatively puny rings around the other ice and gas giants in our solar system are leftover remnants of rings that were once massive like Saturn’s. Maybe some time in the not-so-distant future, astronomically speaking, after Saturn’s rings are ground down, they will look more like the sparse rings of Uranus.” Sign up to our free Indy100 weekly newsletter Saturn’s rings are made mostly of ice but have a small amount of rocky dust created by broken asteroid fragments and micrometeoroids colliding with the rings. The research also found that the rings appeared long after Saturn’s initial formation, and were still forming when dinosaurs roamed the Earth. “Our inescapable conclusion is that Saturn’s rings must be relatively young by astronomical standards, just a few hundred million years old,” said Richard Durisen, professor emeritus of astronomy at Indiana University Bloomington and lead author of the studies in a statement. “If you look at Saturn’s satellite system, there are other hints that something dramatic happened there in the last few hundred million years. If Saturn’s rings are not as old as the planet, that means something happened in order to form their incredible structure, and that is very exciting to study.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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The ex-wife of slain Microsoft executive Jared Bridegan, who was fatally shot by a gunman as he drove home with his two-year-old daughter, has been arrested and charged with his murder. Shanna Gardner-Fernandez was arrested in Washington state on Thursday and will be extradited back to Duval County, Florida, where she has been indicted by a grand jury on a charge of first-degree murder and child abuse. “We promised at the outset of this investigation we would not relent until we uncovered the truth of Jared’s murder, the whole and entire truth,” State Attorney Melissa Nelson told reporters. Prosecutors say they will push for the death penalty for both Ms Gardner-Fernandez and her husband, Mario Fernandez. He and his former tenant, Henry Tenon, have both already been charged for their alleged roles in the February 2022 murder in a wealthy suburb of Jacksonville Beach. Bridegan, a father of four, was murdered after he had dropped off the twins he shares with his ex-wife and was headed back to the house he lived at with his second wife, Kristen Bridegan. Investigators say that he stopped his vehicle when he was a tire in the middle of the road, and when he got out to move it he was shot multiple times in front of his daughter Bexley. Court documents say that several bullets came within inches of hitting the youngster, who was strapped into her car seat. Bridegan and his ex-wife divorced in 2015 but had been involved in court battles over custody of their twins and finances. Ms Gardner-Fernandez hired a prominent criminal defence lawyer following the murder and then moved back to the Pacific Northwest and prevented the twin from having any contact with their half-sisters, reported Fox News. Mr Tenon, 62, was charged on 25 January with conspiracy to commit murder, second-degree murder with a weapon, accessory after the fact to a capital felony and child abuse. Authorities say that he was a former tenant of Mr Fernandez. He has a long criminal history and was already behind bars awaiting trial on unrelated charges. Police announced on 16 March that Mr Fernandez had been arrested in Orlando and he was charged with first-degree murder, conspiracy to commit murder, solicitation to commit a capital felony and child abuse. On the same day, it was announced that Mr Tenon had pleaded guilty to second-degree murder and agreed to testify against him and anyone else potentially involved in the killing. The state attorney said that Mr Tenon had admitted that he was the gunman and he faces up to 15 years in prison under the plea agreement. Mr Fernandez pleaded not guilty when he was arraigned in July and prosecutors say that he will not be offered a plea deal. According to the indictment, he wrote Tenon three checks and phone records show the men made more than 70 phone calls to each other before and after the killing. Read More An ambush on a quiet road, a fatal shooting and a year-long mystery: A breakthrough in Jared Bridegan’s murder case Husband of Microsoft executive’s ex-wife could face death penalty for roadside murder Husband of Microsoft executive’s ex-wife is charged with his murder on Florida roadside Arrest made in mysterious murder of Microsoft executive Jared Bridegan, police say more suspects likely Widow of Microsoft executive gunned down in front of 2-year-old daughter prays ‘evil and cowardly’ killers are brought to justice

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