英语听力：探索发现 科学新发现：我们的大气层-24

This is a genuine iron meteorite, this is believed to have once been part of the core of a long dead planet or asteroid, and this was found right here in this strewn field, this remarkable little shapes, indentations on the surface are called thumbpr

Alien Neighbors 寻访外星人 7

“And so with Magellan we’ve got the first chance, one of the first chances, ok, to really get a complete map and view of it.” The Venusian landscape has a desert-like appearance, but it’s a go

VOA慢速英语2010年-EXPLORATIONS - On Mars Day, the Red Pl

DOUG JOHNSON: Im Doug Johnson. FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. Mars Day at the Smithsonian Air and Space Museum in Washington is a celebration of our solar systems most famous planet. The event, on July s

Hollywood Stunt Pilots to Retrieve Pieces of the Sun

David McAlary For weeks, two helicopter crews have been practicing the mid-air capture of a parachute drifting down over the Utah desert. When the event acttually occurs Wednesday, the parachute will

CNN 2009-07-30

Hi there! Thanks for joining us. I'm Virginia Cha at the CNN center in Atlanta with a look at what's happening NOW IN THE NEWS. Authorities looking for an eighth member of alleged North Carolina terror group. They say the suspects planned a violent

step by step 第四册 lesson 136

Lesson 136 Part Ⅰ Warming-up Exercises Instruction-following: Calculator Operating controls Key Function 1. on■ off ______ _________ 2. 0 - 9 ______ _________ 3. + - ×÷ ______ _________ 4. = ___

On Mars, NASA Finds ‘Organic’ Substances Linked to Life

The United States space agency says its Mars exploration vehicle has discovered chemical substances necessary for life. Scientists reported that NASAs Curiosity rover found large amounts of organic molecules in 3.5 billion-year-old rock in an area ca

VOA慢速英语2014 如何找到陨石?

How Does One Find a Meteorite? 如何找到陨石? Editor's Note: The annual Perseid meteor shower will peak in the skies over Earth on the night of Aug. 12-13. Despite a bright moon supermoon, there should still be a good show from this prolific sho

美国国家公共电台 NPR New Exhibit Shows Off Special Effects Pioneer Ray Harryhausen's Lasting Works

MICHEL MARTIN, HOST: We're going to spend the next few minutes hearing about two unusual stories about the film industry. Long before CGI and digital animation, creatures like those in Clash Of The Titans came alive through the world of stop-motion m

小兄弟威胁着地球(1)

Suns Hidden Twin Stalks Planet Earth 太阳隐藏着的小兄弟威胁着地球 [1] When the end of the world comes, we'll know what to blame. Scientists have found compelling evidence that the Sun ha

万物简史 第53期:埃文斯牧师的宇宙(17)

At this point, about 4.5 billion years ago, an object the size of Mars crashed into Earth, blowing out enough material to form a companion sphere, the Moon. Within weeks, it is thought, the flung material had reassembled itself into a single clump, a

【时间旅行者的妻子】28

When I flick on the lights there are pumpkin-sized rocks all over the floor, whole and halved, craggy on the outside and streaked with veins of metal inside. Ooh, look, Henry. Meteorites. Whats meteorites? Rocks that fall from outer space. He looks a

外太空最黑暗的真空中是否有生命

We generally imagine aliens on a vaguelyEarth-like planet circling a distant star. We do not normally think of themliving out in space itself. 我们通常想象外星人住在绕着遥远的恒星运行,隐约像地球的行星上. 我们一般不会认

东京奥运会开幕式上，会有一场人造流星雨

If you thought Russia's recent efforts to prevent rain in the sky from dampening holiday spirits represented the ultimate in scientific stage management, you ain't seen nothing yet. 如果你认为俄罗斯最近为了阻止雨水毁掉节日氛围的努

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An asteroid hurtled past Earth. It was 13 times closer to Earth than the moon is. Then a huge meteorite exploded above a city in Russia. The shock wave shattered thousands of windows. Then a white fireball over San Francisco startled witnesses. Then

经济学人183:小行星探测 黎明号初试锋芒

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万物简史 第223期:把铅撵出去(12)

As always, however, nothing was quite as straightforward as such a breezy description makes it sound. Meteorites are not abundant and meteoritic samples not especially easy to get hold of. Moreover, Brown's measurement technique proved finicky in the

万物简史 第222期:把铅撵出去(11)

For seven years, first at the University of Chicago and then at the California Institute of Technology (where he moved in 1952), he worked in a sterile lab, making very precise measurements of the lead/uranium ratios in carefully selected samples of

Science names HIV study 2011 Breakthrough of Year

WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year. The study found that if HIV-infected heterosexual individuals begin taking

音乐咖啡厅:Lights - Meteorites

Perseids lead us up to where the money is Where kings had lived Both of us are leaving town when we get old enough We're moving up We are gonna see greater heights Theyll put our names up in neon lights Rolling volcanoes in the night Glowing in the d