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小行星样本可能“改写太阳系的化学体系”

Asteroid Samples May ‘Rewrite the Chemistry of the Solar System’

One-fifth of an ounce of dark specks brought to Earth from an asteroid by a Japanese spacecraft are some of the most pristine bits of a baby solar system ever studied, scientists announced on Thursday.

周四,科学家宣布,日本宇宙飞船从小行星带到地球的五分之一盎司的小行星样本是迄今为止研究过的太阳系发育初期中最原始的部分。

That fact should help planetary scientists refine their knowledge of the ingredients in the disk of dust and gas that circled the sun about 4.6 billion years ago before coalescing into the planets and smaller bodies.

这一事实应有助于行星科学家完善他们对46亿年前围绕太阳旋转的尘埃和气体盘中凝聚成行星和较小天体的成分的认识。

“We must rewrite the chemistry of the solar system,” said Hisayoshi Yurimoto, a professor of earth and planetary sciences at Hokkaido University in Japan and the head of the research analysis described in a paper published by the journal Science on Thursday.

“我们必须重写太阳系的原有化学体系,”日本北海道大学地球和行星科学教授、研究分析负责人百合本久义说,他在《科学》杂志周四发表的一篇论文中描述了这一点。

Read more at The New York Times

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