VOA慢速英语2011--Looking Inside the Brains of 'Lucid Dreamers'

SCIENCE IN THE NEWS - Looking Inside the Brains of 'Lucid Dreamers' FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we tell how warmer weather in the Arctic could speed up c

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

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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.

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For Mars to have rivers, it must once have had streams, rain, clouds and an atmosphere, a planet just like the Earth today-if these were rivers. They had to be sure. The answers would come in 1998 wit

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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

名校励志英语演讲 07:给大学毕业生的几个忠告

If the world continues on a business-as-usual path, the Intergovernmental Panel on Climate Change predicts that there is a fifty-fifty chance the temperature will exceed 5 degrees by the end of this century. This increase may not sound like much, but

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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

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Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

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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

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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

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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

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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'

VOA标准英语2011--Melting Arctic Could be Major Source of Greenhouse Gases

Melting Arctic Could be Major Source of Greenhouse Gases The melting arctic permafrost could release methane-producing microbes with the potential to accelerate climate change, according to a new study published in Nature. Lead author Janet Jansson,

北极冰带的融化将加速全球变暖进程

北极冰带的融化将加速全球变暖进程 DATE=2/16/01 TITLE=SPECIAL ENGLISH ENVIRONMENT REPORT - Arctic Permafrost Melting BYLINE=Cynthia Kirk （Start at 59

NPR 2010-03-05

The New York governors communications chief is resigning over the political scandal overshadowing the states top office. In a statement today Peter Hoffman says that given the recent developments, he had to quit. Governor David Paterson is under pres

2006年VOA标准英语-Scientists Say Melting Permafrost Could Amplify

By Frank Ling Washington 07 August 2006 New research shows that global warming might be worse than expected because of melting permafrost, permanently frozen soil, which can release the greenhouse gas, carbon dioxide. Computer models predict higher

VOA标准英语2011--Polar Scientist Charts Melting Caused by

Polar Scientist Charts Melting Caused by Climate Change Michael Gooseff follows water to the end of the earth. The Pennsylvania State University hydrologist works in remote regions of the Arctic and Antarctic, where ice and frozen ground are thawing.

美国国家公共电台 NPR Cemeteries Turn To Swamps As Alaska's Permafrost Melts

SCOTT SIMON, HOST: Most native villages in the western part of Alaska are built on permafrost. That's a thick layer of frozen soil. And with climate change, the permafrost has started to thaw. In one town, this means their cemetery is melting. People

美国国家公共电台 NPR Is There A Ticking Time Bomb Under The Arctic?

DAVID GREENE, HOST: Come with us on a journey inside the Earth. Well, inside a special layer in the Earth. A quarter of the Northern Hemisphere is covered with what's called permafrost, and for the first time in centuries, the permafrost is beginning

美国国家公共电台 NPR Anthrax Outbreak In Russia Thought To Be Result Of Thawing Permafrost

Anthrax Outbreak In Russia Thought To Be Result Of Thawing Permafrost STEVE INSKEEP, HOST: Russia is fighting a mysterious outbreak of disease. Dozens of people are hospitalized due to anthrax. Yes, anthrax, the bacterial infection so deadly that cer