Saturns Rings Are Younger Than the Planet They Orbit

first_img Hubble Captures Saturn’s ‘Phonograph Record’ Ring SystemTonight: See Saturn at Its Best and Brightest for the Year Stay on target Before plunging to its death in Saturn’s atmosphere in 2017, NASA’s Cassini spacecraft took one final probe of the planet’s unique rings.Now, data from the mission’s grand finale is giving scientists insight into the extensive system, and it’s potential age.Precise measurements of Cassini’s ultimate trajectory suggest the rings are a relatively recent addition, having originated between 10 million and 100 million years ago.Estimates of the age of Saturn’s rings vary widely.During the Grand Finale, Cassini passed between the inner edge of Saturn’s D-ring and the cloud top (via NASA/JPL/Caltech)Some believe they formed along with the planet 4.5 billion years ago, from icy debris remaining in orbit after the formation of the Solar System.Others maintain the bands are much younger; that Saturn captured an object from the Kuiper belt or a comet and gradually reduced it to orbiting rubble.As one of Cassini’s last acts, NASA programmed it to perform 22 dives between Saturn and its rings, to probe the planet’s gravity field. Earthbound radio telescopes then measured the spacecraft’s velocity to within a fraction of a millimeter per second.These calculations, led by Philip Nicholson of Cornell University and Luciano Iess from the Sapienza University of Rome, put to rest “a long-running argument among planetary scientists, according to the University of California, Berkeley.Saturn’s interior is composed of three primary layers: a deep, inner rocky core made mostly of heavy elements, enveloped by liquid metallic hydrogen, and surrounded by a thick layer of gaseous molecular hydrogen (H2) (via NASA/JPL/Caltech)The new mass value fits earlier estimates, which suggest that lower mass equals younger age. Initially bright and made of ice, the bands over time become contaminated and darkened by interplanetary debris.In fact, they may disappear as quickly (very, very slowly) as they appeared.NASA recently confirmed that the gas giant is losing its iconic brims due to “ring rain,” a phenomenon in which particles and gases fall into the planet’s atmosphere.“These measurements were only possible because Cassini flew so close to the surface in its final hours,” UC Berkeley professor Burkhard Militzer said in a statement. “It was a classic, spectacular way to end the mission.Findings were published this week in the online edition of the journal Science.More on Geek.com:Cassini Data Reveals ‘Ring Rain,’ Other Mysteries of SaturnDust Storms Spotted on Saturn’s Moon TitanCassini Data Shines Light on Saturn’s Famous Hexagonlast_img read more

Save Up to 74 Percent Off on USBC Accessories

first_imgStay on target AlsterPlus: Ultra Powerful USB-C Battery Pack – $179See Deal Manufacturers are adopting USB-C as the standard connector on new mobile devices. And why not? It’s easier to use and far more efficient than anything that’s come before. Need to stock up on essentials for your USB-C powered smartphone, tablet, or laptop? Then check out these offers at the Geek Deals store and save up to 74 percent off the MSRP.AlsterPlus: The World’s Most Powerful USB-C Battery PackMSRP: $258   | Sale: $179   | Save 30 percentThe AlsterPlus may be the last portable battery pack you’ll ever need to buy. It boasts an enormous capacity of 27,000mAh — enough to fully charge a laptop several times — and features two USB-C and two USB-A ports so you can charge multiple devices at once.Simply connect your devices and the charger will deliver a suitable amount of power to each. It offers technology that’ll protect against overcharging, it’s small and lightweight so you can take it virtually anywhere, and the unit itself can recharge in as little as one hour. ANCHOR Cable Stainless Steel Magnetic Cross-Device Cable + USB-C Connector – $17.95See Deal Sonic Soak Is the Tiny Washing Machine That Goes AnywhereThis $500 SEO Tool Is Only $24 Today ANCHOR Cable Stainless Steel Magnetic Cross-Device Cable and USB-C ConnectorMSRP: $29   | Sale: $17.95   | Save 38 percentLooking for a foolproof way to charge your USB-C devices? Then you need this stainless steel magnetic cable from ANCHOR. It includes a USB-C connector that you plug into your device and leave there all day long. To begin charging, simply touch the end of the cable to the connector and they will form a strong magnetic bond.The cable features a length of 3.9 feet, has a stainless steel casing for durability, and won’t ever tangle. It supports 2.4 A fast charging and, though this package only includes a USB-C connector, it would also work with Lightning and Micro USB connectors if you already have them. CHOETECH USB-C To HDMI CableMSRP: $17.99   | Sale: $16.99   | Save 5 percentPortable devices may be convenient but sometimes their small screens are a little limiting. And that’s precisely what makes this UCB-C to HDMI cable from CHOETECH such a must-have item. It lets you transmit data from any mobile device and display it — with perfect clarity — on a much larger monitor or television screen.Simply plug the USB-C end of the cable into your device and the HDMI end into your television. That’s all there is to it. The cable features a length of six feet so you can control your device while still sitting a comfortable distance away, gold plated plugs for a strong connection, and a premium casing that provides better insulation against heat. Want your products featured at the Geek Deals store? Learn more about how to sell your products online! 6-in-1 USB-C Hub for MacBook ProMSRP: $159.95   | Sale: $39.99   | Save 74 percentThe new MacBook Pro may be powerful but, when it comes to connectivity, it’s sorely lacking. That’s what makes this 6-in-1 USB-C Hub such a great addition. It introduces an array of extra ports to your MacBook that increases its versatility by a factor of three.The hub offers a total of six ports including two USB-C, two USB-A, and Micro SD and SD card slots. It installs easily into your MacBook’s existing USB-C ports and it features an aesthetic that makes it virtually unnoticeable. Omnia P5 Wall ChargerMSRP: $59.00   | Sale: $44.99   | Save 23 percentNeed a portable wall charger that works from anywhere and with all of your devices? Then you need the Omnia P5. This small, packable wall charger fits neatly into any carry on bag and is compatible with virtually everything including MacBooks, smartphones, tablets, and even the Nintendo Switch.Just plug your device into the appropriate port — either USB C or USB A — and the P5 into a conveniently placed wall socket. It features Quick Charge technology that ensures efficient use of your power resources, and it even comes with adapters so you can use it internationally. CHOETECH USB-C To HDMI Cable – $16.99See Deal 6-in-1 USB-C Hub for MacBook Pro – $39.99See Deal Omnia P5 Wall Charger – White – $44.99See Deallast_img read more