火星表面存在液態水

2015/10/09 瀏覽次數:8 收藏
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  10月9日BBC聽力:火星外面存在液態水

  

  President Obama and his Russian counterpart Vladimir Putin have met in New York openingtheir discussions on Syria and Ukraine with a stony face handshake. US officials said theyagreed to explore a political solution to the crisis in Syria. President Putin said the meeting hadbeen surprisingly frank. From New York, Barbara Plett Usher has more details. Mr. Putin saidRussia was thinking about how to further strengthen the Syrian army. He ruled out Russianground forces, but not airstrikes, as long as they respected international norms, such as therequest from the country's government, he said, unlike the strikes carried out by the US-ledcoalition. A US official said the two men decided to direct the militaries to talk about how toavoid conflicts between potential operations in Syria. They also agreed to explore options fora political solution, said the official, but still disagreed on the main sticking point,the future ofthe president Bashar al-Assad.

  Four British citizens who have gone to Syria to join the Islamic State group are to faceinternational sanctions up to a request of their own government. The four described asnotorious foreign fighters will subject to global travel bans and asset freezes. Here is CaroleWalker. The list includes Sally-Annes Jones from Chatham in Kent, who left her two young sonsto travel to Syria with her husband. And Aqsa Mahmood, a former Glasgow University studentwho is believed to have recruited other women to the IS cause. The other two are Abu-Saidal-Britani and Nasser Muthana. A government official said the Prime Minister believes the sanctionswere a powerful tool sending a clear message to those thinking of going to join IS extremists.

  NASA has obtained the clearest evidence that water flows on Mars raising the possibility thatthe planet could be home to primitive life. Images captured by the Mars reconnaissanceorbiter suggested gullies on its surface were formed by salty water. Doctor Robert Zubin ispresident of the international Mars Society. It’s liquid water, not fresh water or salt water, butnot a little bit of it in one place, and their discovering this is a widespread phenomenon thatit has presence of liquid water on the surface of Mars and undoubtedly a large aquiferunderground as well. So this greatly supports the motivation for the scientific exploration ofMars because everywhere on earth with this liquid water, we found life.

  Christian militia men have attacked the main jail in Bangui, the capital of the Central AfricanPublic, freeing hundreds of prisoners. The breakout came during an upsurge in violencebetween Christians and Muslims. French and UN peace keeping troops are trying to restoreorder.

  The military in Burkina Faso say members of the presidential guard that staged a short livecoup earlier this month are refusing to lay down their weapons.Under a peace deal brokeredlast week, the army agreed to withdraw from the capital while the presidential guards weresupposed to be disarmed. World news from the BBC.

  The Taliban in Afghanistan have captured a major city for the first time since the US-ledinvasion in 2001. Hundreds of fighters stormed Konduz in the multi pronged assault. JonnyDymond reports. Taliban fighters attacked Konduz from three directions. After the initialassault, one resident says that they were told the battle was over. But by later afternoon, theTaliban banner was flying in the city’s main square. A spokesman said that they had taken thegovernor’s house and were marching on the airport. The Afghan government is sendingreinforcements. But if Taliban dig in, they will be difficult to dislodge.

  The Cuban leader Raul Castro and president Obama have both called for an end to US economicsanctions on Havana. Speaking at the United Nations, President Castro said a fullnormalization of relations with the United States could only be achieved if, what he called, theeconomic blockade against Cuba was lifted. Speaking to the same gathering just hours before,President Obama expressed the confidence the US congress would lift the embargo.

  The Japanese firm Hitachi has agreed to pay 19 million dollars to settle charges by USregulators that it made improper payments to South Africa's governing party, the Africannational Congress. The US Security and Exchange Commission says Hitachi paid millions ofdollars to a front company for the ANC to secure contracts to build two power plants. Hitachihas refused to admit or deny the allegations, but power station contracts became a hugescandal in South Africa five years ago.

  Surgeons in London have used human embryonic stem cells in a pioneering attempt to cureblindness. Cells derived from a donated early embryo were implanted into the retainer of the 60year-old woman with age related macular degeneration, the most common cause of blindnessin the UK. Initial results on whether any vision has been restored should be available by theend of the year. BBC news.

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