Scientists detect biggest explosion since Big Bang

first_imgBut 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. center_img 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 last_img read more

Wenger sees Monreal as attacking threat

first_img The 27-year-old arrived at the Emirates Stadium on January transfer deadline day in an £8.5million deal from Malaga. The defender produced solid displays in his first taste of Barclays Premier League action against Stoke and at Sunderland, before showing glimpses of his forward ability when his run and cross set up a late winner for Santi Cazorla against Aston Villa. Wenger is confident with time, Monreal will provide another outlet to the Gunners’ many attacking options, and he said in the March edition of the official Arsenal magazine: “The first thing you want from your defenders is to defend well, so we cannot reproach him for that. You will see the other aspects of his game more when his confidence has settled.” Press Association He added: “He is good in the air for a guy of his size, has a quick leap and has looked good. Monreal is very strong in other areas too, his crosses for example, and his forward play you will see a bit later. “It happened with Kieran Gibbs too, the more confident he became the more efficient he was going forward. It can take a bit if time to express that side.” Wenger continued: “There is no better culture shock than to play against Stoke and Sunderland. “He has not said a word to me about it, but he has spoken with the other players and he has seen all about the passion and commitment of the English game. You can say Nacho Monreal passed that test.” Gibbs has been sidelined with a thigh injury sustained in the 2-2 draw against Liverpool on January 30 – which gave Arsenal little time to hasten a move for Monreal. Wenger had been on the Spaniard’s case “for a long time”, and was happy to have landed “one of our big targets”. The Arsenal manager admits the January window was a testing period for the club, who came under criticism for not spending big despite obvious shortcomings on the pitch. “We had a difficult first six months of the season, because we were trying to extend the contracts of all the British players. That demanded a lot of work and then we had to deal with the (Theo) Walcott situation as well during January,” Wenger said. “”So personally I am relieved because we dealt with the situation and we extended all of our players (contracts).” center_img Arsenal manager Arsene Wenger feels Spain international Nacho Monreal will soon develop into as potent an attacking threat down the flank as he is reliable at the back.last_img read more