陨石物质

60秒科学:Murchison Meteorite's Chemical Bonanza

Murchison Meteorite's Chemical Bonanza The 1969 Murchison meteorite was known to harbor complex organic compounds, but a new analysis in Proceedings of the National Academy of Sciences finds that it may also contain millions of chemicals and shed lig

发表于:2019-01-02 / 阅读(94) / 评论(0)

60秒科学

SSS 2010-06-15

When astronaut Alan Shepard took his first swing at a golf ball on the moon, he hit more dirt than ball. The dust he kicked up reinforced the idea that the moon is one big sand trap. But looks can be deceiving. Now, scientists reanalyzing lunar sampl

发表于:2019-01-08 / 阅读(50) / 评论(0)

Scientific American(六)月

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

发表于:2019-01-12 / 阅读(39) / 评论(0)

2014年VOA慢速英语(八)月

假如地球只剩最后一小时

What would you do in your last 60 minutes?An asteroid is on a collision course with the earth and you have one hour left to live. What would you do in your last 60 minutes? Not surprisingly, the majority of Britons questioned in a survey -- 54 percen

发表于:2019-02-01 / 阅读(35) / 评论(0)

阅读空间

万物简史第415期:生命的起源(9)

Life emerged so swiftly, in fact, that some authorities think it must have had helpperhaps a good deal of help. 实际上，生命出现得太快，有的权威人士认为肯定有什么东西帮了忙也许是帮了大忙。 The idea that earthly l

发表于:2019-02-17 / 阅读(42) / 评论(0)

万物简史

Buildings reglazed after meteorite strike in Russia

MOSCOW, Feb. 17 (Xinhua) -- Most buildings damaged by Friday's meteorite fall in Russia's central Urals Region have been restored, and educational institutions will operate as usual on Monday. Xinhua reporters saw in the hardest-struck Chelyabinsk Re

发表于:2019-02-17 / 阅读(54) / 评论(0)

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