But new telescope data from Australia’sMurchison Widefield Array and India’s Giant Metrewave Radio Telescope seem toconfirm it. And that meant any black hole explosionwould have to have been unimaginably prodigious. The huge release of energy is thought tohave emanated from a supermassive black hole some 390 million light years fromEarth. Scientists at first doubted theirexplanation however, because the cavity was so big; you could fit 15 of our ownMilky Way galaxies in a row into the hole. The eruption is said to have left agiant dent in the Ophiuchus galaxy cluster. They had long thought there wassomething strange about Ophiuchus galaxy cluster, which is a giant aggregationcontaining thousands of individual galaxies intermingled with hot gas and darkmatter. X-ray telescopes had spied a curious curved edge to it. SCIENTISTS have detected evidence for acolossal explosion in space – five times bigger than anything observed before. Black holes are famous for gorging oninfalling matter, but they will also expel prodigious amounts of material andenergy in the form of jets. “In some ways, this blast is similar tohow the eruption of Mount St Helens (volcano) in 1980 ripped off the top of themountain,” said Simona Giacintucci of the Naval Research Laboratory inWashington, DC, and lead author of the study. (BBC) The speculation was that this might bethe wall of a cavity that had been sculpted in its gas by emissions from acentral black hole. Researchers reported their findings inThe Astrophysical Journal. Images of the Ophiuchus galaxy cluster appear to confirm the explosion. CHANDRA X-RAY OBSERVATORY
USC’s 13th-ranked women’s tennis team will have an opportunity to redeem itself this weekend after suffering back-to-back losses at No. 12 Cal and No. 4 Stanford.Break the chain · Freshman Zoë Katz has lost her last four singles matches, but hopes to get back to her winning ways this weekend. The Los Angeles native is currently ranked No. 101 in the nation. – Ralf Cheung | Daily TrojanBoth the Bears (14-4, 7-0 Pac-12) and the Cardinal (14-1, 6-1) swept the Women of Troy (14-6, 5-2), dealing USC its first two conference losses of the season and spoiling the team’s chances at replicating its undefeated Pac-12 mark from last year.With the losses, the Women of Troy fell into a fourth-place tie in the conference standings, two matches behind Cal and a match behind No. 2 UCLA and Stanford.USC is now gearing up for its last home stand of the season, as No. 19 Arizona State comes to town on Friday and No. 25 Arizona visits USC on Saturday. All three teams are tied with a 5-2 mark in conference play.The 19th-ranked Sun Devils are coming off of a 4-0 win over Colorado and a 4-2 win over Utah last weekend. Arizona State boasts two nationally-ranked singles players in No. 49 Desirae Krawczyk and No. 68 Stephanie Vlad. In addition, Krawczyk and Kassidy Jump comprise the 85th-ranked doubles team in the nation.Arizona will also come to Los Angeles having recently topped Utah, 7-0, and Colorado, 5-2. Much like their rival Sun Devils, the Wildcats have two players ranked in singles: No. 60 Lacey Smith and No. 61 Lauren Marker. Arizona has no ranked doubles teams.Meanwhile, USC boasts four ranked players in singles. Junior Sabrina Santamaria is ranked No. 17 in the nation, but she sustained an ACL injury in March that sidelined her for the remainder of the season.Junior Zoë Scandalis, who has taken over Santamaria’s spot on USC’s top singles court, is next at No. 26. Junior Giuliana Olmos is ranked 76th in the nation, and freshman Zoë Katz rounds out the group at No. 101.Ranked doubles teams for the Women of Troy include the tandem of Olmos and Scandalis, who land at No. 6. The team of Katz and senior Brynn Boren, meanwhile, currently sits at No. 13. Santamaria and senior Kaitlyn Christian, the defending national champions in doubles, come in at No. 25.If history repeats itself, USC’s chances of dispatching the Arizona schools and climbing back into the Pac-12 contender race are solid. Last year, the Women of Troy took home two resounding wins on a road trip to the Grand Canyon State defeating the Sun Devils 7-0 and the Wildcats 6-1. USC was led in those matches by Olmos and Santamaria, who each captured two straight set wins in singles. Still, given the loss of Santamaria to injury and the team’s poor play last weekend, this year’s matches should be more competitive.Interestingly, another good omen for the Women of Troy could be their current two-game losing streak. The two previous times this season that the team lost back-to-back matches, it went on to rattle off five straight wins.USC’s next two games mark its second-to-last weekend of Pac-12 play. On April 18, the team travels to face UCLA, looking for revenge after having fallen to the Bruins twice this season already (once in the ITA National Team Indoor Tournament by a 4-0 score and again last month, 5-2). A week later, both teams will travel to the Pac-12 championships in Ojai, Calif.
Elsewhere Clonmel RFC take on Kinsale in the final of the Dave Dineen Cup in Midleton. Kick-off is at one o’clock. Thurles travel to Fermoy to take on Skibbereen in the final of the Munster Junior Plate.The Tipp club last won title back in 2009. Kick-off is at four o’clock.
Former Ghana coach Kwesi Appiah has confirmed being contacted for the now vacant job of the Sudan national team. Mohammed ‘Mazda’ Abdallah resigned as coach of the Nile Crocodiles following their 0-4 defeat to Gabon over the weekend.
“I will be happy to coach the Sudan national team but I don’t know if it will be for a permanent or caretaker role. We will see how things go in the coming days,” he added. Kwesi Appiah also qualified and led Ghana to the 2014 Fifa World Cup in Brazil.–Follow Gary on Twitter: @garyalsmith. Get more updates on Facebook/Twitter with the #JoySports hashtag Appiah during his time as Ghana coach led the Black Stars to beat Sudan twice. He took up the Khartoum SC job last December and has impressively guided the side to third place after 23 games in the Sudanese top flight this season. “I was contacted by the Sudanese FA over the weekend but I referred them to my club,” Appiah who has been back in Ghana to mourn ex-playmate George Arthur confirmed to Nhyira FM on Tuesday afternoon. And Appiah who is currently coaching local side Khartoum SC has been penned down for the role by the Sudan Football Association who expect to make an announcement by the close of week. The Sudanese FA want the ex-Ghana international to leave his post at Khartoum SC and take up the national job but must agree to this arrangement with the club. “But I have not agreed on anything yet because I’m contracted to Khartoum FC. They must discuss and seal an agreement with my club first.