字神帝國英語天地

今日主題：Triple Black Hole System Found In Distant Galaxy
遙遠的星系發現三黑洞系统

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…/2014/20140702sa_space.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：
Triple Black Hole System Found In Distant Galaxy
遙遠的星系發現三黑洞系统

Inside most galaxies a supermassive black hole lurks. But one galaxy about 4 billion light-years from us was recently discovered to have not one, not even two, but three gigantic black holes at its center.
一般在大多數星系中會潛藏著一個超大品質黑洞。然而，最近發現的距離我們40億光年的一個星系並不是潛藏了一個，也不是兩個，而是在它的中心潛藏了三個超大黑洞。

Such triple systems appear to be extremely rare—only four are known. The newfound system includes two black holes orbiting each other very closely, about 450 light-years apart, with a third black hole a bit farther out.
這樣的三元系極其罕見，我們知道的只有四個。新發現的三元系包括兩個運行軌道特別近的黑洞，它們距離大約450光年，第三個黑洞距離要遠一點。

The central pair zoom around each other at a fast clip, about 300 times the speed of sound on Earth. The hole trinity also represents the tightest trio of black holes known to date. It’s described in the journal Nature. [R.P. Deane et al, A close-pair binary in a distant triple supermassive black hole system]
中間的一對黑洞相會環繞著急速上升，速度是地球上音速的300倍。根據已知數據，這三個黑洞也是至今聯繫最緊密的三元系黑洞。這被發表在《自然》雜誌上。

As these objects continue to orbit at the center of their galaxy, gravity will eventually pull them closer and closer together. Ultimately, they may even merge.
隨著它們在他們的星系中心不停的繞軌道運行，重力最終會使他們越來越近。到最後，他們還可能會合併在一起。

Researchers hope this triple-black-hole system may be a good place to look for space-time ripples called gravitational waves. As their orbits shrink, the black holes should radiate away some of their orbital energy as the sought-after gravitational waves, predicted by Einstein a century ago.
—Clara Moskowitz
研究人員希望這個三元系黑洞可以成為尋找時空波(又稱引力波)的好地方。一個世紀以前，愛因斯坦預測稱，隨著他們軌道的不斷縮小，黑洞會輻射出一些它們的軌道能量，那就是很受歡迎的引力波。——克拉拉•莫斯科維茨