Horizon - Life On Mars 火星生命 - 4

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N

Horizon - Life On Mars 火星生命 - 2

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

Horizon - Life On Mars 火星生命 - 5

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

Antony Gormley

Hello, Im Callum Robertson and this is Entertainment. th The British sculptor Antony Gormley celebrates his 57 birthday this week. Hes a prolific and popular modern sculptor. One of his most well known pieces is the huge Angel of the North, an enormo

Horizon - Life On Mars 火星生命 - 15

Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se

Horizon - Life On Mars 火星生命 - 13

Life on Earth is basically proteins and DNA, so we can wonder if there is life on Mars will also be DNA and proteins, the same type of DNA, the same type of proteins. One might think that DNA is such

Horizon - Life On Mars 火星生命 - 12

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

Horizon - Life On Mars 火星生命 - 9

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

Horizon - Life On Mars 火星生命 - 11

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

NPR 2008-11-07

President Bush is promising a smooth transition for the administration of President-elect Barack Obama. Mr. Bush said it would include briefings on issues ranging from national security to the economy and a planned trip to the White House Monday whe

偶像励志英语演讲 第70期:不说绝不(4)

Buss Peterson, My roommate. When I first met Buss, all I heard about was that this kid from Ashville North Carolina was clearly unplayed against but he has never played against me then, so how do you come to be the player of the year? Is that some ty

美国有线新闻 CNN 金正恩宣布朝鲜新战略路线 中止核导试验集中力量发展经济

Now, we're moving to Eastern Asia, where North Korea's leadership looks like it's making a major policy change. Over the weekend, the communist country said its quest for nuclear weapons is complete, that it's shutting down one of its nuclear test si

英语听力：探索发现 2012-03-04 荒野求生 澳洲金伯利—2

Its suddenly just so hot. Its quite ncie and cool in the breeze of like 100-mile-an-hour slipstream. But suddenly you realize it is very, very hot. And its also just huge. Look at this. First thing, find a vantage point to see where you are. The Kimb

英语听力：探索发现 2012-04-15 荒野求生:冰岛—2

Man, this place is bleak. Im here in the middle of winter. Just now its 15 degrees Fahrenheit. But in a few hours, it can get down to a deadly minus ten. Get some feeling back in the hands again. My goal is to show how you could survive in this waste

英语听力：探索发现 2012-09-26 长毛象王国 Mammoth—8

The answer lies in the effects of North Americas immense and fluctuating ice sheets. As they grew, they locked up so much water that the sea levels began to fall. The Bering Sea between Asia and North America began to drain away, leaving a bridge of

前途未卜的英国威尔士核项目

In a field in a remote part of north-west Wales, a lone farmer cuts the grass, parcelling it up into hay bales which can be sold for a modest profit. His farm, and even the hill on which it sits, will soon be demolished by the Japanese-owned company

VOA双语新闻：美促北韩贯彻六方协议停止核项目

The United States said Friday North Korea is continuing to take steps to reverse the shutdown of its Yongbyon reactor complex. The State Department urged North Korea to remain in compliance with the six-party accord, under which is to scrap its nucle

【英语听和读】安东尼-葛姆雷

Callum: Hello, Im Callum Robertson and this is Entertainment. The British sculptor Antony Gormley celebrates his 57th birthday this week. Hes a prolific and popular modern sculptor. One of his most well known pieces is the huge Angel of the North, an

【英语时差8,16】希腊人最先发现地球是圆的（下）

Being clean is a good thing. After all, simply washing your hands regularly can help ward off flu and other contagious diseases. Maybe For the past few decades scientists have been debating the so called hygiene hypothesisthe idea that being exposed

VOA标准英语2012--US Furniture Capital Holds Annual Showcase

US Furniture Capital Holds Annual Showcase Hundreds of U.S. towns and cities call themselves the capital of something or another. Even the world capital of this or that. Many of these titles are just for fun - a bit of promotion for the area. Tarpon