课程咨询

托福考试网 托福资料下载 托福资讯 0元讲座 水平测试

托福考试练习
新东方在线 > TOEFL > 托福听力 > 正文
托福培训

扫码免费领资料

内含托福全科备考资料

更有免费水平测试及备考规划

托福培训

扫码关注掌握一手留学资讯

回复XDF免费水平测试

录播精讲 直播课HOT

托福听力练习-科学美国人60秒:始星系如何扩大

2017-03-07 16:11:51来源：科学美国人60秒

点击查看>>科学美国人60秒音频：始星系如何扩大

　　科学美国人60秒中英文翻译：始星系如何扩大

　　科学美国人60秒英文文本

　　How did big galaxies get so big? A rare glimpse at a primordial galaxy undergoing a growth spurt may provide some answers.

　　The galaxy Himiko is named for a Japanese queen of the third century AD. Researchers peered into the galaxy using both the Hubble Space Telescope and the newly inaugurated ALMA telescope array in Chile. The galaxy is so distant that astronomers see it as it appeared just 800 million years after the big bang, when the universe was only about six percent of its present age.

　　At that early epoch, Himiko was already making new stars at a vigorous clip of about 100 per Earth year. The burst of star formation may be powered by a merger of three smaller galaxies—the detailed new observations show that Himiko is not one homogenous blob but three separate luminous clumps. The research has been submitted to the Astrophysical Journal.

　　The researchers say that their observations offer the first clear glimpse at how the most massive galaxies took shape, way back when the earliest stars and galaxies were lighting up the universe. And that should prove to be a very big deal.

　　中文翻译请点击下一页

本文关键字: 托福听力练习 科学美国人60秒

上一页 1 2 下一页

托福辅导

关注新东方在线托福

托福机经·Official题目练习

考前重点突破·听说读写海量资料

更多资料

关注新东方在线托福，
回复【XDF】获取大礼包

托福辅导
  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加】，回复对应关键字领取学习资料。
更多>>
更多内容

免费获取托福备考大礼包

微信扫描下方二维码 立即领取

托福辅导
更多>>
更多公益讲座>>
更多>>
更多资料
托福TPO 托福听力练习 托福口语练习 托福阅读练习 托福写作练习
我要
反馈 返回
首页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10