BBC双语新闻:太阳风"偷走"火星大气层

时间:2015-11-19 10:17:53  / 编辑:Abby
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  Britain has been joined by more countries in restricting travel to the Egyptian resort of SharmEl-sheikh after a Russian passenger plane came down on Saturday. France and Belgium haveadvised against all but essential visits while Dutch and German airlines have suspended flights.Airlines started repatriating thousands of British tourists on Friday under extraordinarysecurity measures, as Robin Brant reports. After discussions between the British and Egyptiangovernments, special rules will mean passengers will be allowed hand baggage only as they flyhome. In a clear sign of the severe concern about the level of security checks on the ground inEgypt, the British government has insisted that nothing goes in the whole of the aircraft. Allcases and bigger bags will come home on separate flights. Downing Street says outboundflights remain suspended.

  The British government believes the plane was probably brought down by a bomb. PresidentObama said this was a possibility which the US was taking very seriously. I don't think we knowyet. Whatever you got a plane crash, first of all you got the tragedy, you got that making surethat there is an investigation on site. I think there is a possibility that there was a bomb onboard.

  The charity Medecins Sans Frontier says US airborne forces shot its staffs and patients as theyfled in an attack on its hospital in Afghanistan a month ago. Gary O’Donoghue reports on theMSF review of the incident in Kunduz. MSF says it finds it hard to believe that the airstrike onits hospital was a mistake. Its report details the steps it took to inform both Afghan and USforces about the location of the facility, and what appears to be repeated phone calls during theattack to stop it. Work is continuing to identify some of the casualties. But it says ten patientsdied, two of them on the operating table. The US has promised to help rebuild the hospital andto make, what it calls, condolence payments to the families of those killed.

  Germany's governing coalition of Conservatives and Social Democrats have resolved theirdispute over how to speed up the asylum process for migrants.Here is Mike Sanders. It is aquarrel that has damned the Christian Democrats and their junior partner the SocialDemocrats for weeks. Party leaders led by Chancellor Angela Merkel held a joint newsconference to announce an agreement to create up to five special centers. These would holdmigrants with spurious asylum claims that include those born in countries deemed safeincluding Albania and Kosovo, those barred from reentering Germany and those refusing tocooperate. Cases could be heard in a week not month, and appeals would take only a furthertwo weeks. Most could expect to be deported. World news from the BBC.

  An official of the international watchdog on chemical weapons has confirmed that rebel groupsin Syria have used mustard gas. The official from the Organization for the Prohibition ofChemical Weapons says its experts have determined that the gas was used during a battlebetween rival rebel factions in northern Syria in August.

  A dam has burst in the town of Mariana in southeastern Brazil flooding a large area withmineral waste. Aerial pictures have shown rivers of mud and houses destroyed all buried up totheir roof tops. A local workers union   says at least 15 people may have been killed, and dozensof others are missing.

  Newly released date from a NASA spacecraft has delivered new insight into how the sunstripped the atmosphere from Mars. The Maven Mars orbiter found that the solar wind travelingat more than 1.7 million km/hour carries off atmospheric gas at the rate of around 100 gramsa second. Solar storms prevalent billions of years ago would have increased the rate ofdepletion by up to 20 times. The principal investigator on NASA's Maven project Bruce Jakoskysaid most of the planet atmosphere was already stripped away billions of years ago. Most ofthese stripping by solar wind at Mars were thought to have taken place very early in the historyof the solar system when the sun was like more active when the solar wind was more intense,so today the rate of loss at Mars is low. The BBC science correspondent says that thedepletion may have deprived nascent microbes of the time it needed to involve into morecomplex life forms.

  A one year old British girl has become the first person in the world to receive a pioneering genetherapy treatment that has cleared her off cancer. Leila Richie was just three months old whenshe was diagnosed with aggressive leukemia when conventional therapies failed, doctors usesexperimental gene editing science to create a designed immune system. BBC news.

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