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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

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VOA慢速英语 Glider Plane to Soar Stratosphere for Data

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Project Aims to Study Stratosphere Via Aerospace Firm's Glider

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What started as a small business in a dorm room is now a word in the English language. And Google has no plans to slow down. In October, the company paid $1.65 billon to acquire YouTube. In December, Google agreed to a partnership with NASA to bring

Study: Loss of Ozone Slows

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

Small asteroid to pass Earth: NASA

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Earth Day 2003

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经济学人40:气候和太阳圈 在冬日的阳光中发冷

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Eating earth may be good for stomach: study

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Asteroid buzzes Earth harmlessly

BEIJING, June 28 (Xinhuanet) -- A truck-sized asteroid passed over the Atlantic Ocean within 7,500 miles of the Earth on Monday, according to NASA's Jet Propulsion Laboratory. The space rock, called asteroid 2011 MD, is the second space rock to zip e

万物简史 第215期:把铅撵出去(4)

Buoyed by the success of leaded gasoline, Midgley now turned to another technological problem of the age. Refrigerators in the 1920s were often appallingly risky because they used dangerous gases that sometimes leaked. One leak from a refrigerator at

Millions Celebrating Earth Day Around the World

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万物简史 第361期:进入对流层(2)

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