Ceres Is Young

first_imgDawn Mission scientists were surprised to see this asteroid (dwarf planet Ceres) with a water cycle and evidence of rapid geological changes.For planetary scientists accustomed to thinking in billions of years, what the Dawn spacecraft revealed about Ceres must have been a shock. A press release from Jet Propulsion Laboratory says, “NASA Dawn Reveals Recent Changes in Ceres’ Surface.” Previously, the spacecraft had detected carbonates that must have been produced in an ocean. Now, they are seeing changes within the observation period of the mission.Water ice is not stable on the surface of Ceres over long time periods unless it is hidden in shadows, as in the case of Juling. Similarly, hydrated carbonate would dehydrate, although over a longer timescale of a few million years.“This implies that the sites rich in hydrated carbonates have been exposed due to recent activity on the surface,” Carrozzo said.The great diversity of material, ice and carbonates, exposed via impacts, landslides and cryovolcanism suggests Ceres’ crust is not uniform in composition. These heterogeneities were either produced during the freezing of Ceres’ original ocean – which formed the crust – or later on as a consequence of large impacts or cryovolcanic intrusions.“Changes in the abundance of water ice on a short timescale, as well as the presence of hydrated sodium carbonates, are further evidence that Ceres is a geologically and chemically active body,” said Cristina De Sanctis, VIR team leader at the Institute of Astrophysics and Planetary Science.Two papers announce the discoveries. One, in Science Advances, speaks of the “detection of water ice in a mid-latitude crater and its unexpected variation with time,” with changes visible in just six months. “The reported variation on Ceres’ surface indicates that this body is chemically and physically active at the present time.”The smaller a body, the more rapidly it should have cooled and become inactive in 4.5 billion years. Ceres is much smaller than Pluto (which also showed unexpected activity when New Horizons flew past in 2015; see review 19 March 2016), and smaller than Saturn’s moon Dione. The other asteroid target of Dawn, Vesta, also showed evidence of watery youth (28 Oct 2011, 9 Feb 2015). At the end of the paper, the scientists scramble for possible sources of energy to keep Ceres active.The variation of superficial water ice occurring in the short time frame covered by these observations provides new scenarios for Ceres’ evolution. It indicates an active body and reinforces not only the link with the icy solar system objects but also the uniqueness of Ceres, given its present location in the main belt.The other paper by Carrozzo et al. in Science Advances tries to understand the presence of carbonates on Ceres.The correlation of Na carbonates with some extrusive constructs suggests that at least some Na carbonates are transported to, or near to, the surface by ascending subsurface fluids in several areas of Ceres. However, the association of Na carbonate with young craters could be consistent with the material mobilized or created by impact-induced heating. The data are not sufficient to fully discriminate among the possible mechanisms, and likely, the types of Na carbonates and the observed distribution are the results of a combination of different processes.Whatever happened, the detection of carbonates on the surface “provides major constraints on Ceres’ chemical evolution,” the authors say.NH4 salts are speculated to be unstable over geologic time. Hydrated sodium carbonates are not stable on airless surfaces and dehydrate upon exposure to vacuum and irradiation over Myr timescales. Destabilization on the surface involves both dehydration and decarbonation; for example, Na2CO3·H2O in Na2CO3 + H2O(g). The detection of hydrated Na carbonates supports an aqueous origin of Na carbonates followed by their partial decomposition (mainly dehydration) in surface environments. This implies that sites rich in hydrated carbonates have been formed/exposed recently (a few million years), and dehydration of hydrated Na carbonates is still ongoing. This is in accordance with crater counting and modeling that predict recent formation, within tens to hundreds of millions of years.The different chemical forms of the sodium carbonate, their fresh appearance, morphological settings, and the uneven distribution on Ceres indicate that the formation, exposure, dehydration, and destruction processes of carbonates are recurrent and continuous in recent geological time, implying a still-evolving body and modern processes involving fluid water.They still make estimates into the millions of years, but those fall far short of the assumed 4.5 billion years for the origin of the solar system, sometimes called “geologic time” (what we dub “Darwin Years“).Ceres joins the young, active object club, a large and growing list. One wonders if planetary scientists will ever find any object that lives up the assumed age of the solar system. Does this object look billions of years old to you?DAWN 10th anniversary image (false color) of Ceres, centered on Occator Crater with its bright sodium carbonate deposits. (NASA/JPL)(Visited 532 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

CLT20: Injured Rohit Sharma to miss the league, Pollard frontrunner to lead MI

first_imgIndian batsman Rohit Sharma. Photo: APStar batsman Rohit Sharma’s finger fracture is not only a blow to the Indian team but a big setback for Mumbai Indians as well, who will be playing in the qualifiers of the Champions League T20 starting September 13, in Raipur.With Rohit sustaining a fractured middle finger during the second ODI against England at Cardiff, it is unlikely that he will play any part during MI’s qualifying round matches in Raipur, which kicks off with a match against Lahore Lions.As of now, dashing West Indies all-rounder Kieron Pollard looks a likely candidate to lead the popular T20 franchise.”While Pollard is an automatic choice in the MI set-up, his success as the captain having led the Barbados Tridents to title triumph in the recently concluded Caribbean Premier League (CPL) will go in his favour. But Harbhajan should also be sounded out,” a source in the know of things told PTI today.Among the senior players, there is Harbhajan Singh, under whom Mumbai Indians won the Champions League T20 in 2012 but according to reliable sources is not too keen on leading the side. Harbhajan, who is fighting to make a comeback is more interested in performing well for the Mukesh Ambani-owned team.Sri Lankan pacer Lasith Malinga is also one of the senior players in the side and had also led Sri Lanka to ICC World T20 triumph after being handed over the captaincy mid-way due to sudden dip in Dinesh Chandimal’s form.Aussie great Michael Hussey’s place in the playing XI is not assured, which can be a reason that he won’t be considered for the hot-seat.advertisementIf fit and available, the four first-choice overseas players are likely to be Lendl Simons, Kieron Pollard, Corey Anderson and Lasith Malinga.The MI will certainly be seeking a replacement for the injured Rohit, who incidentally also sustained a finger fracture during 2011 tour of England.Mumbai Indians: Rohit Sharma, Harbhajan Singh, Ambati Rayudu, Pragyan Ojha, Praveen Kumar, Aditya Tare, Jalaj Saxena, Jasprit Bumrah, Shreyas Gopal, Michael Hussey, Kieron Pollard, Corey Anderson, Lasith Malinga, Marchant de Lange, Lendl Simmons.last_img read more

HEART TRUST/NTA Develops Bamboo Training Courses

first_img The HEART Trust/NTA has developed five courses aimed at ensuring competency in bamboo harvesting and processing.This is in keeping with the Government’s move to embark on the large-scale commercial production of bamboo in order to tap into the lucrative international market and provide opportunities for employment and community-based initiatives.The courses are bamboo ply technology, bamboo charcoal processing, bamboo shoots cultivation and pre-processing, bamboo coal harvesting, and bamboo culm harvesting and pre-processing.Manager for Curriculum Development at the training agency, Monica Porter-Lewis, said the training aims to establish standards in the industry.She informed that the syllabuses have been approved by the National Council on Technical and Vocational Education and Training (NCTVET) and will prepare persons for “immediate entry into the world of work”.She was addressing a graduation ceremony held recently at the Clarendon Municipal Corporation for young people who have received training and certification in the production of bamboo by-products, including the incorporation of bamboo in light-emitting diode (LED) technology, under the Peckham Bamboo Project.Mrs. Porter-Lewis said the agency is committed to the development of “rigorous, learner-centred curricula, so that people can acquire the cognitive and non-cognitive skills needed to escape poverty, share in economic growth and fulfil their potential”.The Peckham Bamboo Project is being executed by the Clarendon Municipal Corporation through US$130,000 provided by the Organization of American States (OAS).The Peckham Bamboo Project, implemented in 2015, aims to contribute to the development of a viable and sustainable bamboo sector in Jamaica by creating employment and entrepreneurial opportunities in bamboo cultivation and manufacturing of bamboo by-products. The HEART Trust/NTA has developed five courses aimed at ensuring competency in bamboo harvesting and processing. Story Highlights The courses are bamboo ply technology, bamboo charcoal processing, bamboo shoots cultivation and pre-processing, bamboo coal harvesting, and bamboo culm harvesting and pre-processing. The Peckham Bamboo Project, implemented in 2015, aims to contribute to the development of a viable and sustainable bamboo sector in Jamaica by creating employment and entrepreneurial opportunities in bamboo cultivation and manufacturing of bamboo by-products.last_img read more

CANADIAN SINGER MICHAEL BUBLE AMONG HOLLYWOOD WALK OF FAME HONOUREES

first_imgAdvertisement Advertisement Buble hosted the Juno Awards in Vancouver in March, where he announced that his wife, Luisana Lopilato, is expecting their third child.Other accolades under the singer’s belt include two Grammys, a Canadian Screen Award and Governor General’s Performing Arts Award.The 42-year-old returned to the stage this year after taking time off when his son Noah underwent treatment for an unspecified form of cancer.VIA THE CANADIAN PRESS LEAVE A REPLY Cancel replyLog in to leave a comment Facebook Advertisementcenter_img HOLLYWOOD, Calif. — Canadian crooner Michael Buble will be getting his own star on the Hollywood Walk of Fame next year.The singer from Burnaby, British Columbia, is one of the entertainers named by the Hollywood Chamber of Commerce for the honour.Others in the class of 2019 include actors Robert De Niro, Anne Hathaway and Daniel Craig. Login/Register With: Canadian crooner Michael Buble will be getting his own star on the Hollywood Walk of Fame next year. The singer from Burnaby, B.C., is one of the musicians named Monday by the Hollywood Chamber of Commerce for the honour. Buble is shown on stage at the Juno Awards in Vancouver, Sunday, March, 25, 2018. THE CANADIAN PRESS/Darryl Dyck Twitterlast_img read more

Kevin Loring named National Arts Centres first director of Indigenous Theatre

first_imgAnnette Francis APTN National NewsAward winning actor Kevin Loring was introduced as the first director of Indigenous Theatre Thursday in Ottawa.Loring is from the Lytton First Nation in British Columbia and is considered a brilliant actor, playright, and teacher.He said he’s nervous about taking over as director of Indigenous Threatre.But he added that he completely understands what his mandate is.“I’ll be travelling the country and we’ll have a real storng belief that we’re gonna do some plays here but we”ll also do stories coast to coast to coast,” Loring said. “We’ll go out to the communities, its a big part of what I believe my mandate will be.”The NAC is a federally funded arts and cultural centre tasked with representing the Canadian landscape.Last year it announced that it was starting an Indigenous threatre to go with its English and French theatre programs.afrancis@aptn.calast_img read more

Napoli confirms interest in Krunic

first_imgEmpoli president Fabrizio Corsi has talked about how the Italian Lega Serie A squad wants to buy Rade Krunic and Hamed TraoreThere have been many rumors about Italian Lega Serie A club Napoli wanting to acquire the services of Rade Krunic and Hamed Traore from Empoli.And today Empoli president Fabrizio Corsi spoke to Radio Kiss Kiss, as quoted by Football Italia, to confirm the interest for those two players.“[Napoli director of sports Cristiano] Giuntoli likes Krunic and we have talked about him, exchanging opinions,” Corsi said.Transfer: Africa Cup of Nations winner joins Milan George Patchias – August 5, 2019 AC Milan has signed Algerian star Ismael Bennacer.The African Cup of Nations winner and a key member of the Algerian national team has completed…“He knows how to value individual players.”“We also talked about Traore, who was born in 2000 and already has so much character on the field,” he added.“I think Ismael Bennacer can do great things, as he is like Lucas Torreira, but with more quality.”last_img read more

Port of San Diego Stay Open project

first_imgPort of San Diego Stay Open project Updated: 8:51 AM KUSI Newsroom, Categories: Good Morning San Diego, Local San Diego News FacebookTwitter Posted: May 20, 2019center_img May 20, 2019 00:00 00:00 spaceplay / pause qunload | stop ffullscreenshift + ←→slower / faster ↑↓volume mmute ←→seek  . seek to previous 12… 6 seek to 10%, 20% … 60% XColor SettingsAaAaAaAaTextBackgroundOpacity SettingsTextOpaqueSemi-TransparentBackgroundSemi-TransparentOpaqueTransparentFont SettingsSize||TypeSerif MonospaceSerifSans Serif MonospaceSans SerifCasualCursiveSmallCapsResetSave SettingsSAN DIEGO (KUSI) – The Port of San Diego has selected an experienced, international hospitality team to develop and operate a new shared hospitality pod hotel concept, expected to be one of the first in the country.The Port sought proposals for an innovative team to develop and/or operate lower-cost overnight accommodations near San Diego Bay. Of the three complete proposals received, the Board of Port Commissioners selected the STAY OPEN team.“We are very pleased to have been selected by the Port of San Diego for the development of lower-cost overnight accommodations near San Diego Bay. With the location’s proximity to transit and nearby attractions, we saw this site as a great opportunity for the new STAY OPEN concept. We look forward to being the first to bring shared hospitality to the San Diego market through a pod hotel and expect there to be a great deal of synergy for guests of our Los Angeles locations, which are in development now,” said Steve Shpilsky, CEO and Co-Founder of STAY OPEN.The STAY OPEN hotel would feature:• 220 self-contained pods (33 rooms with eight to 12 pods per room) – each with a single-occupancy bed, storage locker, power supply, ventilation control, closeable screen for privacy and security; and free Wi-Fi;• Well-appointed shared bathroom with shower facilities, comparable to a high-end fitness center;• Six private Ensuite rooms with private bathrooms featuring queen and twin beds ideal for couples and families;• An activated rooftop space with a restaurant, bar and outdoor seating, which will be open to the public“STAY OPEN’s innovative ‘shared hospitality’ concept really stood out, as it is geared towards the traveler that is looking to stay in prime locations without breaking the bank or sacrificing the experience,” said Chairman Garry Bonelli, Port of San Diego Board of Port Commissioners. “The STAY OPEN team has a successful track record of developing and operating high quality, lower-cost overnight accommodations globally. We look forward to having them as a partner.” KUSI Newsroom last_img read more

SD woman pleads guilty to smuggling drugs across USMexico border

first_img KUSI Newsroom SAN DIEGO (KUSI) – A San Diego woman pleaded guilty today to federal charges related to smuggling large quantities of drugs from Mexico into the United States, including more than 450,000 fentanyl pills.April Spring Kelly, 38, admitted in San Diego federal court that she smuggled the pills, along with methamphetamine and cocaine, through ports of entry in San Diego and Nogales, Arizona. The drugs were then moved to mid-level distributors in San Diego and Phoenix, according to the U.S. Attorney’s Office.The smuggling occurred between February and October of last year. She also attempted to smuggle drugs through the San Ysidro Port of Entry last Nov. 30, leading to her arrest with around 36 pounds of methamphetamine, 37 pounds of cocaine, and a dozen pounds of powdered fentanyl in her car, according to authorities.Kelly is slated to be sentenced Oct. 11 before U.S. District Judge Janis Sammartino.“San Diego is the gateway for fentanyl to the rest of the country, and we are working aggressively to close that gate, one smuggler and one distributor at a time,” U.S. Attorney Robert Brewer said. SD woman pleads guilty to smuggling drugs across U.S.-Mexico border Posted: July 15, 2019 KUSI Newsroom, July 15, 2019 Categories: Local San Diego News FacebookTwitterlast_img read more

Huge Gun Show Returns To Wilmington On March 23

first_imgWILMINGTON, MA — Shriners Auditorium (99 Fordham Road) will host a firearm and knife show, featuring 500 tables, on Saturday, March 2, 2019, 9am-5pm, and Sunday, March 3, 2019, 9am-3pm.Participants can buy, sell and trade sporting, antique, and collectible firearms; custom and high quality knives; and various militaria.The general admission fee for adults is $12. Children 12 and under, with an adult, are free. Parking is also free. Learn more HERE. A $1-off coupon can be found HERE.The event is hosted by New Mart Promotions of Massachusetts and promoted by the NRA-affiliated Westchester Collectors Club.(DISCLAIMER: All federal, state and local firearm ordinances and laws must be obeyed.  New Massachusetts requirement for firearm purchases – a “pin” number is needed to purchase a firearm. Pin numbers can be obtained from the Department of Criminal Justice Information Services by calling 617-660-4722, Monday through Friday, 8am to 6pm.)Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… RelatedHuge Gun Show Returns To Wilmington On March 3-4In “Business”Huge Gun Show Returns To WilmingtonIn “Business”Huge Gun Show Returns To Wilmington On November 12-13In “Business”last_img read more

Buy four new Tile Mate trackers for 60 get a Google Home

first_img Amazon Gadgets Smart Home Video Games TV and Movies See It Best Buy Watch Google Home Mini’s new side touch function in action Mentioned Above Google Home Mini (Coral) Google Mini $29 $379 $29 Now playing: Watch this: CNET may get a commission from retail offers. $29 Tags See it See Itcenter_img CNET Just yesterday, while visiting my parents, I had a lightbulb moment: My mom needs a Tile. That’s because she often can’t remember where in the house she left her phone. But her keys are always parked on the key hook.I’ll come back to that after this important message: For a limited time, and while supplies last, Best Buy is offering a free Google Home Mini when you purchase a Tile Mate four-pack for $59.99. The Mini — available in your choice of four colors — is a $50 value. Update: I goofed! Best Buy’s page made it look like you could save $10 on the 4-pack and still get the Mini for free. Alas, the combination comes to $60, not $50. Still a great deal, but I do apologize for the error.See it at Best BuyI’ve long been a big fan of the Tile, and I especially like this newer version that has better range and a replaceable battery. In the aforementioned scenario, my mom just needs to double-press the Tile button and her phone will ring — even if it’s set to silent. Likewise, the phone can be used to locate the keychain.As for the Mini, everything you need to know can be found in CNET’s Google Home Mini review. It probably goes without saying that if yours is an Android-centric household, you’ll love the little smart speaker.And I love this deal. Get it while you can! 18 Best laptops for college students: We’ve got an affordable laptop for every student. Best live TV streaming services: Ditch your cable company but keep the live channels and DVR. Google Home Mini The Cheapskate Review • The Google Home Mini is a worthy competitor to the Amazon Echo Dot News • Google pushes its Assistant in cars with Anker Roav Bolt Dell How To • Prime Day 2019 final hours: Best Target deals you can get right now See It Bonus deal: Game time! Thimbleweed Park is like X-Files meets Maniac Mansion, and in fact the game comes from the creators of the latter. It normally runs $9, but for a limited time, Epic Games is offering Thimbleweed Park for free.See it at Epic GamesAs with previous Epic giveaways, you’ll need an account and the company’s client software — both also free, of course.Bonus deal No. 2: It’s the 20-year anniversary of cult-classic movie Office Space, and I think it holds up pretty well. So, yeahhhh, I’m going to need you to go ahead and buy Office Space (HD) for $4.99, which is only a dollar more than the rental price. (It’s also available from Fandango for that price.)See it at AmazonFun fact: David Herman, who played Michael Bolton in the movie, also voices Mr. Frond on Bob’s Burgers. Looking for more trivia, history and more? Read Rolling Stone’s oral history of Office Space, then follow it up with The Ringer’s oral history of Office Space.Now if you’ll excuse me, I have a thousand more TPS reports to file.CNET’s Cheapskate scours the web for great deals on PCs, phones, gadgets and much more. Note that CNET may get a share of revenue from the sale of the products featured on this page. Questions about the Cheapskate blog? Find the answers on our FAQ page. Find more great buys on the CNET Deals page and follow the Cheapskate on Facebook and Twitter! Comments 0:33 Share your voicelast_img read more