“Marvelous Puzzle”: Enceladus’ South Pole Surface Less Than 1,000 Years Old

first_imgEnceladus, a moon of Saturn smaller than the British isles (comparison image), has a region at the south pole that is less than 1,000 years old, and maybe only 10 years old.  This conclusion, announced at Cassini science briefings in London August 30, is based on multi-instrument observations taken July 14 during the closest flyby ever of Enceladus (08/09/2005, 07/14/2005).  Crystalline ice has been found in four 80-mile-long parallel canyons dubbed “tiger stripes” due to their appearance.  Water ice has been observed venting into a plume of small particles from these cracks, which are noticeably warmer than the surrounding regions.  Measurements from all the instruments aboard the Cassini spacecraft converge on the conclusion that Enceladus’ southern polar surface is young, probably active today.    Two instruments detected icy particles coming from the south pole.  The Ion and Neutral Mass Spectrometer (INMS) and the Cosmic Dust Analyzer (CDA) measurements reached a peak at closest approach (graph, flyby chart), showing that material is being emitted now, and probably accounts for at least some of the fresh material replenishing the E-ring around Saturn.  The Magnetometer (MAG) confirmed the existence of this plume by watching its asymmetric influence on the magnetic field lines around Enceladus; the Ultraviolet Imaging Spectrometer (UVIS) arrived at the same conclusion.  The Virtual and Infrared Mapping Spectrometer (VIMS) (picture) and Composite Infrared Spectrometer (CIRS, see article and picture) showed a temperature rise across the tiger-stripe cracks up to -279°F, almost 40° warmer than expected.  Apparently this is warm enough to cause sublimation of ice from the surface.  The crystalline nature of the ice constrains its age to 1000 years or less.  Crystalline ice rapidly changes to an amorphous structure when exposed to solar radiation.  Another odd thing about the tiger stripes is that each of them curves into a question mark shape at one end, all facing the same way (picture 1, picture 2).  Could this be a rotational effect, or is it due to a massive flow from the west?    The closest-approach image (picture and zoom-in movie) revealed boulders about 20m in size that New Scientist said could be ejecta from eruptions.  That Enceladus should be erupting material today is puzzling to the planetary scientists for several reasons.  For one, the north pole is heavily cratered and therefore looks much older; why would the south pole be active, when normally the equatorial regions are the warmest?   (compare prediction vs. observation).  Another puzzle is the comparison with Mimas, a moon of similar size.  Mimas is heavily cratered with no activity, even though it was pummeled by a colossal impact at some time in the past and is subject to greater tidal stresses due to its proximity to Saturn.  Finally, small bodies cool the fastest.  A moon the size of Enceladus should long ago have lost all its internal heat and remained forever frozen solid.    To account for the heat and resultant activity (03/04/2005), planetary geologists are constructing models combining radiogenic heat from a rocky interior and tidal heating from interactions with Saturn and other moons.  So far, however, these energy sources seem to come up short by an order of magnitude or two (see New Scientist).  This is a “marvelous puzzle,” said one scientist; another said that “Enceladus is constantly evolving and getting a makeover.”  Enceladus joins a “short list of bodies in our solar system where scientists have found internal activity,” the press release said.  That list includes Io (05/04/2004), Titan (06/09/2005, 05/18/2005, 04/08/2005), Triton (05/30/2002), Earth, and Venus (see “Earth’s Ugly Sister Can’t Get a Date,” 08/16/2004).  Most other solid planets and moons exhibit surface features that, while not active today, appear young (06/05/2003 commentary).  The Cassini team expected that Enceladus would prove one of the prima donnas of the Saturn system.  It appears that she delivered a “stunning surprise” of a performance.    Sources: JPL, Cassini press release, NASA Cassini page, New Scientist, BBC News, the Planetary Society, EurekAlert and the Cassini Imaging Team.  The latter contains polar projection maps, a graph and flyby chart, and three models attempting to explain the heating process.Scientists love a good puzzle, and being surprised is fun; we can all share the excitement of a new and baffling phenomenon.  But what none of them seems to be asking is the obvious question: how could this moon be anywhere near 4.6 billion years old?  Look at the size of those canyons – 80 miles wide and 50 miles apart – they speak of large-scale processes at work, not just minor eruptions.  This revelation is just the latest in a long string of discoveries that challenge the consensus view of the age of the solar system.  For all the flash and color of the model diagrams, New Scientist says that tidal heating and internal radioactivity are not anywhere near sufficient to drive the activity.  Why not consider the possibility that Enceladus – as well as the solar system that contains it – is young.    Don’t miss the zoom-in movie; it is really cool.  It puts the imaging capabilities of Cassini into perspective.  The color mosaic is also a beautiful sight.  Here are the tiger stripes up close.  For a complete catalog of Enceladus images, go to Cassini multimedia page and select “Enceladus.”  The Planetary Photojournal is the NASA repository for all solar system images.  Simply click on Saturn, then on Enceladus.(Visited 9 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

Blatche arriving soon, will play for Gilas vs Japanese

first_imgTheir next games in February are away matches against Chinese Taipei and Australia. June Mar Fajardo, the reigning four-time PBA MVP, Jason Castro, Calvin Abueva, Gabe Norwood, Terrence Romeo, Matthew Wright and RR Pogoy are the consensus shoo-ins for the final 12-man lineup in Tokyo. Typhoon Kammuri accelerates, gains strength en route to PH Andray Blatche. Photo by Tristan Tamayo/ INQUIRER.netAndray Blatche, barring any injuries, will finally join Gilas Pilipinas in the next couple of days and will reinforce the Filipinos in their first two Fiba Asia Qualifying games against Japan and Chinese Taipei.The 6-foot-11 Blatche, Team PH’s naturalized player, will play Xinjiang’s final game for the year in the China Basketball Association slated Friday night.ADVERTISEMENT Read Next QC cops nab robbery gang leader, cohort Trending Articles PLAY LIST 00:50Trending Articles00:50Trending Articles00:50Trending Articles01:37Protesters burn down Iran consulate in Najaf01:47Panelo casts doubts on Robredo’s drug war ‘discoveries’01:29Police teams find crossbows, bows in HK university01:35Panelo suggests discounted SEA Games tickets for students02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games ‘He made me into an MVP’: Bolick repays Fernandez’ trust with NCAA crown Blatche was set to arrive Nov. 12 but apparently, failed to get a leave from the Flying Tigers. Xinjiang’s next game will be in January, and that poses another problem for the Gilas coaching staff as the Filipinos will play the Taiwanese and Australia in February.FEATURED STORIESSPORTSWATCH: Drones light up sky in final leg of SEA Games torch runSPORTSSEA Games: Philippines picks up 1st win in men’s water poloSPORTSMalditas save PH from shutoutReports reaching the Gilas camp say that Blatche could flaunt his best form yet in a Team PH uniform.Gilas flies out for Japan on Nov. 21 to play the Japanese before coming home to tangle with the Taiwanese three days later at Smart Araneta Coliseum. Brace for potentially devastating typhoon approaching PH – NDRRMC Stronger peso trims PH debt value to P7.9 trillioncenter_img CPP denies ‘Ka Diego’ arrest caused ‘mass panic’ among S. Tagalog NPA Don’t miss out on the latest news and information. LATEST STORIES Japan ex-PM Nakasone who boosted ties with US dies at 101 MOST READ Kris Aquino ‘pretty chill about becoming irrelevant’ Kammuri turning to super typhoon less likely but possible — Pagasa View commentslast_img read more

London Olympics: Saina Nehwal wins against Sabrina Jaquet of Switzerland in badminton opener

first_imgStrong Indian medal hope Saina Nehwal began her Olympic campaign in style, thrashing Sabrina Jaquet of Switzerland 21-9, 21-4 in a Group E match at the Wembley Stadium.Warming up for the bigger challenges ahead in London, the fourth seeded Indian did not go full throttle against the Swiss player who is ranked 72nd in the world.Saina , looking strong physically, did not launch her powerful smashes and was happy to engage Sabrina in rallies before clinching the point with a cross court smash or dribble.”I am happy to start with an easy win. These are the Olympics and I did not have any gameplan for her as I hadn’t played her before,” said Saina after the match.When asked whether she had adjusted to the conditions, Saina said she had no problem. “I have been training in this hall for the last five days and feel good,” she said with a toothy grin.The first impression of the badminton hall is that it is slow. However, Saina was not willing to comment on it. “I have just played one match and cannot tell you how it is going to affect my game. I will have to play at least a couple of more matches,” she added.In the opening game, it was Saina’s deceptive drops which had Sabrina in trouble.The lanky Swiss player had no clue about the direction of Saina’s deceptive drop shots. Time and again the Indian would wrong foot Sabrina with by changing the direction of her shots at the last minute.To her credit, Sabrina came up with a couple of stinging smashes. But these were few and far between as she seemed to be overawed by the situation. Once Saina took a 11-6 lead in the opener, the writing was on the wall. Saina went on to win the game 21-9.The second game was even more one sided. Sabrina’s game fell apart as she made a series of unforced errors. Before she knew what had hit her, Saina won the game 21-4.advertisementlast_img read more

25 days agoChelsea striker Ike Ugbo in financial limbo at Roda JC

first_imgChelsea striker Ike Ugbo in financial limbo at Roda JCby Paul Vegas25 days agoSend to a friendShare the loveChelsea loanee Ike Ugbo is in financial limbo at Roda JC.NRC says the club want to use his wages to spread across the rest of the squad, instead of their star loanee.Ugbo earns about ten times what his team-mates take home and the coaches would rather have one angry unpaid player than several.Fingers are being pointed at investor Mauricio Garcia de la Vega, who the club are desperate to get rid of after he attempted to take over the club last summer.Ugbo, 21, has scored four goals on loan in the second tier of the Dutch pyramid. TagsLoan MarketAbout the authorPaul VegasShare the loveHave your saylast_img read more

Trump urged to press India to lift telecom blackout in Kashmir

first_imgWashington DC: Expressing concern over the human rights situation in Kashmir, a group of influential US lawmakers has urged President Donald Trump to press India to lift the communication blackout in the Valley and release the people detained after the abrogation of Article 370. In a letter addressed to Trump, Senators Chris Van Hollen, Todd Young, Ben Cardin and Lindsay Graham said with each passing day, the situation for the people of Kashmir becomes “increasingly difficult”. Also Read – Saudi Crown Prince ‘snubbed’ Pak PM, recalled jet from US”Therefore, we ask that you call upon Prime Minister (Narendra) Modi to fully restore telecommunications and internet services, lift the lockdown and curfew, and release Kashmiris detained pursuant to India’s revocation of Article 370,” stated the letter, a copy of which was released to the press. Restrictions were imposed in Kashmir after India on August 5 abrogated Article 370 of the Constitution, ending the State’s special status and bifurcated it into Union Territories – Jammu and Kashmir and Ladakh. Also Read – Record number of 35 candidates in fray for SL Presidential pollsAnother US Senator Bob Casey said India’s changes to the status of Jammu and Kashmir were a “drastic shift” from decades of precedent and policy which increases the potential for escalated conflict between India and Pakistan, and raises serious concerns about the safety and security of the people of Jammu and Kashmir. “I am committed to promoting democracy, human rights and self-determination for the people of Jammu and Kashmir. Accordingly, both India and Pakistan should refrain from incendiary actions that undermine security and human rights in the region,” Casey said. “The Trump administration’s failure to appoint a US Ambassador to Pakistan or an Assistant Secretary of State for South and Central Asian Affairs has left the United States unprepared and ill-equipped to engage meaningfully to ensure the rights and safety of the people of Jammu and Kashmir,” Casey said. The senators in their letter also said Pakistan must also dismantle its safe havens for militant groups operating on its soil including those targeting India and refrain from taking any steps that could further destabilise Kashmir.last_img read more

Stars Attend MPTFs 12th Annual Evening Before Party

first_imgTelevision’s biggest night took place in Century City, CA Sunday, September 16th, where the entertainment industry came together for the 12th annual “Evening Before” party, benefitting MPTF (Motion Picture & Television Fund).Stars Attend 12th Annual Evening BeforeCredit/Copyright: Getty Images for MPTFThe television industry, from Emmy presenters and nominees, to other TV industry members, helped raise funds to support their industry colleagues and friends who benefit from MPTF’s charitable programs and services such as financial assistance, crisis counseling, care giving support and of course the legendary retirement facility in Woodland Hills that is “home” to television and film veterans alike.“I’m incredibly grateful to the corporate sponsors and donors from the television community who came out to support the Evening Before. Their generosity enables MPTF to continue to serve industry workers and their families by providing financial assistance in tough times, subsidizing childcare, and offering help when caring for an aging parent,” said Jeffrey Katzenberg, Chairman of the MPTF Foundation.The 12th Annual “Evening Before” Host Committee consisted of Julie Bowen, Rachel Brosnahan, Sterling K. Brown, Ty Burrell, Darren Criss, Tracee Ellis Ross, America Ferrera & Ryan Piers Williams, Claire Foy, Sophie Hunter & Benedict Cumberbatch, Allison Janney, Judith Light & Robert Desiderio, Kate McKinnon, Debra Messing, Mandy Moore, Elisabeth Moss, Jane Musky & Tony Goldwyn, Bob Odenkirk, Sandra Oh, Issa Rae, Keri Russell & Matthew Rhys, Octavia Spencer, Chrissy Teigen & John Legend, Milo Ventimiglia, and Lena Waithe.The Executive Host Committee included Bob Bakish, Casey Bloys, Linda & Jerry Bruckheimer, Paul Buccieri, Charlie Collier, Cesar Conde, Roma Downey & Mark Burnett, Channing Dungey, Pam & Randy Freer, Robert Greenblatt, Bonnie Hammer, Mike Hopkins, Toni Knight & Tony Vinciquerra, Luz & Robert Kyncl, Katie McGrath & J.J. Abrams, Andrea & David Nevins, Jeanne & Gary Newman, Richard Plepler, Kevin Reilly, Megan & Peter Rice, Andrea & Peter Roth, Jennifer Salke, Josh Sapan, Ted Sarandos, Karen & Ben Sherwood, Dana & Matt Walden, and Ally Walker & John Landgraf.This year’s presenting sponsors were Delta Air Lines, Ford Motor Company, Netflix, PEOPLE, and Target.Among the celebrities who attended this year’s event were Malin Akerman, Sasha Alexander, Louie Anderson, Odette & Dave Annable, Katie Aselton, Lauren Ash, Kevin Bacon, Sosie Bacon, Alec Baldwin, Sara Bareilles, Zazie Beetz, Betsy Brandt, Amy Brenneman, Madeline Brewer, Alison Brie, Logan Browning, Amanda Brugel, Dan Bucatinsky, Sophia Bush, Ross Butler, Jessica Capshaw, D’Arcy Carden, Linda Cardellini, Kristin Chenoweth, Erika Christensen, Laverne Cox, Jackie Cruz, Ted Danson, Viola Davis, Jenna Dewan, Guillermo Diaz, Nina Dobrev, Mark Burnett & Roma Downey, Josh Duhamel, Clark Duke, Mark Duplass, Natalia Dyer, Jenna Elfman, Nathalie Emmanuel, Alice Eve, O-T Fagbenle, Fortune Feimster, Georgie Flores, Will Forte, Tan France, Hannah Gadsby, Johnny Galecki, Sara Gilbert, Betty Gilpin, Ilana Glazer, Ginnifer Goodwin, Kumail Nanjiani & Emily V. Gordon, Lauren Graham, Kelsey Grammar, Max Greenfield, Rupert Grint, Tiffany Haddish, Tony Hale, Jon Hamm, Alyson Hannigan, David Harbour, Marcia Gay Harden, Justin Hartley, Charlie Heaton, Marg Helgenberger, Luke Hemsworth, Marin Hinkle, Anders Holm, Derek Hough, Oliver Hudson, Matt Iseman, Gillian Jacobs, Abbi Jacobson, Jameela Jamil, Mindy Kaling, Jessica Parker Kennedy, Aja Naomi King, Regina King, Jane Krakowski, Peter Krause, Nick Kroll, Padma Lakshmi, Katherine Langford, Ali Larter, Sandra Lee, Ray Liotta, Melanie Lynskey, Jason Mantzoukas, Ricky Martin, Tatiana Maslaney, Kelly McCreary, Dylan McDermott, Joel McHale, Stephen Merchant, Chrissy Metz, Alyssa Milano, Mandy Moore, Jennifer Morrison, Megan Mullally, Niecy Nash, Andrea Navedo, Craig T. Nelson, Thandie Newton, Trevor Noah, Patton Oswalt, Mandy Patinkin, Lauren & Aaron Paul, Tom Payne, Pauley Perrette, Jay Pharoah, Busy Philipps, Dascha Polanco, Adina Porter, Zac Posen, Jaime Pressley, Maggie Q, Issa Rae, Lili Reinhart, Retta, Sam Richardson, Britt Robertson, Debby Ryan, Rodrigo Santoro, Nico Santos, Angela Sarafyan, Jonathan Scott, Drew Scott, Amanda Seyfried, Tony Shalhoub, Molly Shannon, Sarah Silverman, Brittany Snow, Mira Sorvino, Mary Steenburgen, Chris Sullivan, Wanda Sykes, Kenan Thompson, Ashley Tisdale, Allison Tolman, Gina Torres, Michelle Trachtenberg, Skeet Ulrich, Matt Walsh, Derek Waters, Mae Whitman, Samira Wiley, Casey Wilson, Reese Witherspoon, Evan Rachel Wood, Zach Woods, Jeffrey Wright, Michael Zegen, and many more.The “Evening Before” was designed as a relaxed town square atmosphere in the park by Silver Birches with specialty food provided by Carmelized Productions by Jon Shook & Vinny Dotolo.The event is designed after the highly successful “Night Before,” another fundraiser held annually before the Academy Awards® for the past fifteen years to benefit MPTF.last_img read more

Pellegrini rubbishes leak concerns

first_imgWest Ham manager Manuel Pellegrini has dismissed reports that he was concerned about his starting line ups getting leaked in advance.According to reports on Friday, Pellegrini was vexed by a Twitter account that has correctly predicted West Ham starting line ups for months.“First of all, it is not true – it is a lie. I am not angry about that.” Pellegrini told Sky Sports.“Not aware (of it) because normally, in every team I manage before, the day before the game I work with set-pieces.“So, all the players know the day before – who will play, who will not play.“So many players can talk with other players. I am not keeping the starting 11 until three or four hours before the game.Report: Rice is committed to West Ham not a United moveReport: Rice is committed to West Ham not a United move George Patchias – September 4, 2019 Declan Rice is committed to his West Ham contract and not a move to Manchester United.In an interview reported by football.london, Rice opens up…“There are a lot of reasons why some people can know the team.”Asked if he knew who was responsible for the tweets, Pellegrini added: “I don’t have any idea.“I am not worried about that, I am only worried about trying to win three points.“If you play against Chelsea, against Watford, against Liverpool, you are sure it will be the same starting XI (from those teams).“I don’t hide too much about the starting XI.”last_img read more

Gibson gets more time to find alibis for 118 days of alleged

first_img Related Items:#magneticmedianews, #ShaneGibsonappearsincourt Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, October 23, 2017 – Nassau – In court on Friday morning to give his alibis for the 118 days he is alleged to have made extortion demands on contractor Jonathan Ash was former Labour and National Insurance Board Minister, Shane Gibson… but he did not give those alibis, his attorney says it is near impossible to do so.    Gibson appeared in the Supreme Court before Justice Cheryl Grant-Thompson.The former PLP government leader is charged with 31 counts of crime linked to a quarter of a million dollars which is alleged to have extorted and bribed from the suspect contractor between January and April this year.    Gibson had been given 21 days to produce his alibis, his attorney Wayne Munroe QC said it was nearly impossible to identify alibis for the time the crimes were alleged to have happened, according to Police.  The matter was suspended until more specific dates could be given for there to be compliance with the alibi notice.Gibson was in court with his wife and supporters and will reappear in the Supreme Court on November 3, which is next week Friday and presiding then will be Justice John Isaacs.#MagneticMediaNews#ShaneGibsonappearsincourt Facebook Twitter Google+LinkedInPinterestWhatsApplast_img read more

STUDENT SPOTLIGHT Wilmingtons Jason Dunn Named To Deans List At Colby College

first_imgWATERVILLE, ME — Jason T. Dunn of Wilmington was recently named to the highly selective Dean’s List at Colby College in Waterville, Maine, for outstanding academic achievement during the spring semester of the 2018-19 academic year.Dunn is one of 443 Colby students-or 23 percent of the qualified student body-to have earned a spot on the Dean’s List last semester.Dunn, a member of the Class of 2021, attended Wilmington High School and is the son of Dawn Dunn and Thomas Dunn of Wilmington. Dunn earned a semester grade point average of 3.78 or higher this spring to be included on Colby’s Dean’s List.About Colby CollegeFounded in 1813, Colby is one of America’s most selective colleges. Serving only undergraduates, Colby offers a rigorous academic program rooted in deep exploration of ideas and close interaction with world-class faculty scholars. Students pursue intellectual passions, choosing among 58 majors or developing their own. Colby’s innovative and ambitious campaign, Dare Northward, will support deeper connections between the College and the world and a fully inclusive experience for all Colby students. Colby is home to a community of 2,000 dedicated and diverse students from more than 65 countries. Its Waterville, Maine, location provides unique access to world-class research institutions and civic engagement experiences.(NOTE: The above announcement is from Colby College via Merit.)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… RelatedSTUDENT SPOTLIGHT: Wilmington’s Jason Dunn Named To Dean’s List At Colby CollegeIn “Education”STUDENT SPOTLIGHT: Wilmington’s Jason Dunn Named To Colby College’s Dean’s ListIn “Education”Wilmington’s Esdale Named To Dean’s List At Colby CollegeIn “Education”last_img read more

After emphatic win Virat Kohli speaks about biggest positive names biggest impact

first_imgIt was yet another ruthless performance by the Indian team and the usual suspects were at the very best. The seamers rocked Sri Lanka early, the spinners controlled them and then the Indian openers forged a century partnership to absolutely dominate the chase. India became the number 1 side after the league stage, a true reflection of their dominance.”We wanted to play good cricket. To be honest, we didn’t expect this kind of scoreline heading into the semis. But that’s what consistent performances and hard work get you. Really proud and happy of our team. Most amazing team to be a part of. It is really an honour to play for India,” captain Virat Kohli said after the match.Praises Hardik Pandya’s role and intent Indian cricket teamGetty ImagesThe captain also said that as a side, they never focus on the opposition as they believe in their own strengths. He said that his side has the belief that if they play according to their potential, they can beat any side, but if they don’t, any side can beat them. He also spoke of Hardik Pandya and the importance of him firing and bringing the all-round balance to the side.”He has a gut feel as to what the batter might do, so he’s trying different things. Even when he goes out to bat you can see that intent, he’s just switched on from ball one. It is amazing to have a cricketer like that who can bring in so much to the table. Hopefully two more performances from him and till now it has been wonderful to see his performances and passion for the team,” Kohli further added. Twitter/Cricket World CupIn the other match of the day, South Africa downed Australia in a thriller. What this effectively means is that India will now take on New Zealand and Australia will take on England in the semi-finals respectively.The Indian team, as per the skipper, is covered in all dimensions and now it is a matter of turning up and putting in a performance on the day.”Feel confident if we are batting first or bowling first as we are covered with all dimensions. From that point of view we are happy with where we are placed. It is just about turning up on the semifinal day and putting up a performance,” the skipper added.last_img read more