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Dima: Hello, I'm Dima, and today our guest is Richard Firestone, an American scientist in Lawrence Berkeley National Laboratory who has recently been involved in a fascinating research into an unusual 'meteor', that's a piece of rock or other matter

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2007年VOA慢速英语special200708150045

VOICE ONE: I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty with EXPLORATIONS in VOA Special English. This week, we tell about a project to identify images of one million galaxies that have been captured by the Sloan Digital Sky Survey. We also tell

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SSS 2008-05-07

This is Scientific American's 60-Second Science,I am Steve Mirsky.Got a minute? Its accepted that a large meteor impact 65 million years ago was responsible for the mass extinction of the dinosaurs. Which opened up niches for birds and mammals. But l

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the Perseid meteor shower

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Richard Firestone

BBC Learning English People and places Richard Firestone Dima:Hello, I'm Dima, and today our guest is Richard Firestone, an American scientist in Lawrence Berkeley National Laboratory who has recently been involved in a fascinating research into an

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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

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From 20th Century Fox and Blue Sky Studios. Hey, look! Shooting stars! Quick! Make a wish! My wish came true! I'm okay! Mine, too. The defining chapter... Meteor shower! Meteor? Shower? in the greatest chillogy... The mother of ______1_________. But