Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh

发表于:2019-01-22 / 阅读(63) / 评论(0) 分类 自然百科2011年

We are taking a ride through the Milky Way. First, we are traveling to a place where stars are born. Even at the speed of light, 196,000 miles a second, the journey lasts for 1,500 years. We've arrived at the vast glowing cloud of gas and dust, the g

发表于:2019-01-22 / 阅读(70) / 评论(0) 分类 自然百科2011年

Like nebulae which spawn stars, it is made of gas and dust. But that's where most similarities end. For Alex Filippenko, it represents an intriguing industrial zone within our galaxy where the elements from which our world is made or manufactured. Wh

发表于:2019-01-22 / 阅读(87) / 评论(0) 分类 自然百科2011年

We are at a foundry here, and they are pouring molten iron from all machinery. And they are going to make parts for new machines out of that iron, so they are recycling yet, but all that iron was created and ejected into the cosmos by gigantic stars

发表于:2019-01-22 / 阅读(78) / 评论(0) 分类 自然百科2011年

In about four or five billion years, it will grow into a much bigger star, a star called a red giant. And that outer atmosphere of gases will be held so loosely by the sun at that time that the gases will be blown away gently in what I call a cosmic

发表于:2019-01-22 / 阅读(72) / 评论(0) 分类 自然百科2011年

By Gilbert da Costa Abuja 08 June 2007 The Nigerian Supreme Court has rejected a request for bail for a jailed Niger Delta militant leader currently facing treason charges. For VOA, Gilbert da Costa in Abuja reports that his supporters have vowed to

发表于:2019-01-23 / 阅读(108) / 评论(0) 分类 2007年VOA标准英语(六月)

By Al Pessin Pentagon 09 March 2006 Major General Richard Mentemeyer The U.S. military command responsible for operations in Latin America puts a lot of its effort into fighting the illegal drug trade

发表于:2019-01-25 / 阅读(114) / 评论(0) 分类 2006年VOA标准英语(三月)

By David Gollust Jakarta 15 March 2006 U.S. Secretary of State Condoleezza Rice gestures during a speech to a group of Indonesian students, parliamentarians and businessmen Wednesday March 15, 2006 in

发表于:2019-01-26 / 阅读(112) / 评论(0) 分类 2006年VOA标准英语(三月)

By Steve Herman New Delhi 04 June 2007 Brazil's President and a delegation of more than 100 Brazilian business executives are in India to boost trade ties. As VOA's Steve Herman reports from New Delhi, Brazilian President Luiz Inacio Lula da Silva, s

发表于:2019-01-30 / 阅读(93) / 评论(0) 分类 2007年VOA标准英语(六月)

By Paula Wolfson Sao Paulo 09 March 2007 The United States and Brazil are forming an informal alliance to push the production of ethanol. VOA White House Correspondent Paula Wolfson reports from Sao Paulo, the development and promotion of biofuels ma

发表于:2019-01-30 / 阅读(109) / 评论(0) 分类 2007年VOA标准英语(三月)

By Peter Fedynsky Washington 20 March 2007 Rising world oil prices have sparked interest in alternative fuels, such as ethanol, which can be produced from corn. This has raised demand for the grain, which, in turn, has increased its price as food. VO

发表于:2019-01-31 / 阅读(93) / 评论(0) 分类 2007年VOA标准英语(三月)

By Mil Arcega Washington, DC 04 May 2006 watch Ripple Effect of Oil report The latest data on consumer spending shows the U.S. economy continues to expand at a healthy pace. But some economists fear o

发表于:2019-01-31 / 阅读(135) / 评论(0) 分类 2006年VOA标准英语(五月)

By Doug Levine Washington 17 April 2006 Cassandra Wilson is one of today's most-respected jazz vocalists. That's interesting, because Cassandra Wilson's jazz is unlike anyone else's. -----------------

发表于:2019-02-02 / 阅读(129) / 评论(0) 分类 2006年VOA标准英语(四月)

By Nico Colombant Okrika Island, Nigeria 21 May 2007 Militants and villagers in Nigeria's restive, oil-rich and lawless Niger Delta are pleading for help from the incoming government that takes power next week. They say dialogue and development are n

发表于:2019-02-02 / 阅读(125) / 评论(0) 分类 2007年VOA标准英语(五月)

By Margaret Besheer Baghdad 04 April 2007 U.S. military officials say sectarian murders have decreased in Baghdad since a joint U.S.-Iraqi security plan was launched in mid-February, but high-profile car bombings in and around the capital continue to

发表于:2019-02-02 / 阅读(89) / 评论(0) 分类 2007年VOA标准英语(四月)

By Doug Levine Washington 07 June 2006 Although Miles Davis died nearly 15 years ago, he's having one of his best years ever. Is that possible? Miles Davis during a concert at the Jazz-Festival in Mon

发表于:2019-02-03 / 阅读(143) / 评论(0) 分类 2006年VOA标准英语(六月)

By Dorian Jones Istanbul 16 December 2007 Turkish jets have launched airstrikes against Kurdish rebels bases in northern Iraq. According to Iraqi authorities one civilian was killed and several others were injured. Kurdish rebels say Turkish air and

发表于:2019-02-04 / 阅读(71) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Rory Byrne Phnom Penh 15 May 2007 Revenues from large deposits of oil and gas discovered in Cambodia's territorial waters are expected to start flowing by the year 2010. The government says the funds will be used to pay for much-needed infrastruct

发表于:2019-02-05 / 阅读(222) / 评论(0) 分类 2007年VOA标准英语(五月)

By Scott Stearns White House 09 September 2006 President Bush (file photo) President Bush wants Congress to approve military commissions to try suspected terrorist leaders in U.S. custody. The president and opposition Democrats are both addressing n

发表于:2019-02-07 / 阅读(272) / 评论(0) 分类 2006年VOA标准英语(九月)

By George Dwyer Washington 09 May 2007 A U.S. military commander has apologized for the killings of Afghan civilians by U.S. Marines in early March. Colonel John Nicholson told reporters in Afghanistan that he met Tuesday (May 8th) with the families

发表于:2019-02-07 / 阅读(92) / 评论(0) 分类 2007年VOA标准英语(五月)