字神帝國英語天地

今日主題：Dwarf Galaxies Really Cooking with Gas
矮星系大顯身手

洪欣老師推薦：托福聽力最好的課外教材：60-Second Science
康康精選托福會考的主題，堅持每天精聽一定會進步的哦!!

建議方法：
1. 先聽兩三遍 (不看文稿)
2. 再一句一句聽寫 (每句都要聽寫數遍，直到寫出85%以上的字)
3. 最後check文稿，看哪聽不出來，單字沒背過，還是發音不熟。
4. 堅持天天聽，就能每天進步哦。

MP3音檔 (按右鍵可下載聽)：喜歡的同學，幫忙推或按讚哦~~
http://online1.tingclass.net/voas…/…/20140626sa_science1.mp3

只有音檔怎夠，聽不懂地方，不用怕，康康幫你準備好中英文稿了：

中英文稿：
As kids, many of us pondered what stars are made of. [bars of twinkle twinkle?]. Some grown-up astronomers, on the other hand, wonder about where stars came from.
當我們還是孩子的時候，我們就對星星是什麼做的而百思不得其解。而另一方面，一些已經成長為天文學家仍在好奇星星來自哪裡。

Now, a study serves up a surprise. Because it seems that the smallest galaxies in the universe gave rise to an unexpectedly large proportion of stars.
現在的一項研究為我們帶來了驚喜。因為似乎是宇宙中最小的星系孕育了你意想不到的大部分的星星。

The findings are in the Astrophysical Journal. [Hakim Atek et al, Hubble Space Telescope Grism Spectroscopy Of Extreme Starbursts Across Cosmic Time: The Role Of Dwarf Galaxies In The Star Formation History Of The Universe]
這項研究被發表在《天地物理學》雜誌上。

Most of the stars we see in the sky were formed when the universe was young, just a few billion years after the Big Bang.
我們看到的天空中的大多數星星，是形成於宇宙初期，也就是宇宙大爆炸後的幾十億年的時期中。

So to study stellar origins, scientists use telescopes that allow them to see galaxies that are so far away, they’re essentially looking back in time.
因此要想研究恒星起源，科學家要用可以讓他們看到遙遠星系的天文望遠鏡來進行觀察，事實上他們正在回望過去的時間。

Previous observations had focused on the star-forming powers of larger galaxies.
以往的研究專注於較大星系中形成星星的能量。

But in this latest study, researchers used data collected by a powerful camera aboard the Hubble Space Telescope.
但在最新的研究中，研究人員運用了哈勃太空望遠鏡上安裝的超級照相機所收集到的資料。

With this instrument, they could eyeball smaller, dwarf galaxies. And they found that these diminutive dynamos churned out stars at a furious rate, fast enough to double their mass in only 150 million years. You can find more 60-Second science on Chinavoa.com.
在這個設備的説明下，他們可以仔細觀察較小的矮星系，並且他們發現這些這些小型發電機以驚人的速度大量生產著星星，足夠快的速度使得他們在僅僅的1.5億年裡品質翻了一倍。

That reproductive feat would take most so-called “normal” galaxies one to three billion years.
這種高效業績將會耗費所謂的普通星系的10到30億年。

Seems the universe has long known what Danny Devito, Michael J. Fox and Dustin Hoffmann later proved: You don't have to be big to have real star power.
似乎宇宙早就知道丹尼•德維托，邁克爾•J•福克斯和達斯汀．霍夫曼所證明的：只要你有真正的實力沒有必要非要表面的高大。