【Earth&Sky】太空‘飞蛾’惊呆天文学家_英语听力练习mp3下载-科学-沪江听力酷

后台管理反馈贡献

【Earth&Sky】太空‘飞蛾’惊呆天文学家

听力简介：

听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~

Dean Hines: Every time we look at anything in astronomy, in a new way, we've discovered things that we didn't expect.

You are listening to astronomer Dean Hines, speaking from a 2008 science meeting. He found planets being born around the star HD 61005 — it's about 113 light years from Earth. And what surprised him is what he calls, "the moth."

Dean Hines: We're calling it "the moth"because it looks like a moth. Planets forming around a star usually form in a ring. We didn't expect to see the ring wasn't there, but instead what's there is [-----1-----] material being blown out of the system because it's crashing into the [-----2-----] medium.

The interstellar medium, Hines told us, is giant clouds of gas and dust between stars.

Dean Hines: The star is moving pretty fast, and it's running into [-----3-----] material that’s a little bit denser. And it's exactly like standing in front of a fan. So when you see the wings of the moth that is small grains, small dust being pushed out of the system by the wind in this interstellar medium.

And in that dust formed from small planets or [-----4-----] grinding themselves up, said Hines, are signs of planet formation.

Dean Hines: This is one of the few times where we've actually seen an interaction happening between a forming solar system and the interstellar medium.

[-----5-----].

I am Jorge Salazar from E&S, a clear voice for science. We are at E&S. org.

【视听版科学小组荣誉出品】