組圖：哈勃望遠鏡的10大神奇發(fā)現(xiàn)
http://www.sina.com.cn 2005/05/31 16:09 國際在線
1、這是一組哈勃望遠鏡拍攝下來的，遙遠的超新星以及這些巨大的星體發(fā)生死亡爆炸的景象。上面一組照片顯示出爆炸發(fā)生之前的各自的區(qū)域，下面一組顯示的是爆炸的結(jié)果?！? 1.A collection of Hubble Space Telescope images shows distant supernovas, the death explosions of massive stars. The top photos show each region before the explosion. The bottom row shows the explosions' aftermaths
2、美國國家航空航天局表示，哈勃的主要任務(wù)之一就是幫助天文學(xué)家測定宇宙的準(zhǔn)確年齡。現(xiàn)在，它已經(jīng)順利地完成了任務(wù)，幫助天文學(xué)家將宇宙的年齡精確到130億至140億年之間。天文學(xué)家用哈勃觀測到仙女星座和其它星群中的造父變星(如圖)，以確定宇宙的膨脹速度和宇宙的年齡。
2.According to NASA, "One of Hubble's key duties was to help astronomers determine a precise age for the universe. The telescope helped astronomers accomplish that goal, narrowing the universe's age to 13 to 14 billion years old. Astronomers made observations of Cepheid variable stars [pictured above]—pulsating stars used to measure vast distances—in the Virgo and other clusters to establish the expansion rate and the universe's age."
3、美國國家航空航天局表示，哈勃給天文學(xué)家提供了一個“剪貼本”，里面全是一些有關(guān)于早期宇宙的快照。其中包括在探索縱深宇宙的過程中，一系列獨一無二的資料圖片：如“哈勃深空”(Hubble Deep Fields)；“大天文臺宇宙起源深空巡天”(Great Observatories Origins Deep Survey ，GOODS)和哈勃超深空(Hubble Ultra Deep Field, HUDF，如圖示)，這些觀測資料向人們提供了以可見光可觀測到的宇宙最深處的景象。 3.According to NASA, "Hubble provided astronomers with a 'scrapbook' full of snapshots of the early universe … including pictures of the 'deep' universe in a series of unique observations: the Hubble Deep Fields, the Great Observatories Origins Deep Survey, and the Hubble Ultra Deep Field [pictured above]. The observations provided the deepest views of the cosmos in visible, ultraviolet, and near-infrared light."
4、一位畫家描繪出的一顆外天體繞著恒星HD 209458的軌道運行。 4.An artist's conception shows an alien planet orbiting star HD 209458.
5、哈勃望遠鏡拍攝下來的圖象：M87一個巨大的橢圓星系。橢圓星系并不具有大多數(shù)星系具有的扁圓或是螺旋型的形狀。 5.A Hubble Space Telescope image—shows M87 [lower right] a giant elliptical galaxy. Elliptical galaxies do not take on the flat-disk or spiral shapes that most galaxies do.
6、哈勃望遠鏡捕捉到的這張照片顯示的是1999年1月23日伽馬射線爆炸的景象。這是當(dāng)時人們紀(jì)錄過的最大規(guī)模的一次伽馬射線爆炸。
6.The Hubble Space Telescope captured this image of a gamma ray explosion on January 23, 1999. At the time it was the most powerful explosion ever recorded.
7、一組哈勃拍攝到的恒星狀球體(類星體)的宿主星系的圖片。 7.A collection of Hubble space telescope images shows galaxies that host quasars.
8、這是哈勃望遠鏡拍攝到的獵戶星云中的原行星盤(proplyds，protoplanetary disks)?！? 8.A Hubble Space Telescope image shows "proplyds," or protoplanetary disks, in the Orion Nebula.
9、哈勃望遠鏡拍攝到的這個畫面上，一些清晰可見的黑色疤痕向人們揭示出，1994年7月份一顆命名為蘇梅克-列維9號的彗星斷裂成21個碎塊撞擊木星的情景，撞擊產(chǎn)生的蘑菇形的火球在沖擊到了木星的上空。 9.Black scars reveal the aftermath of Jupiter's impact with nearly two dozen chunks from comet Shoemaker-Levy 9 in 1994. The impacts sent towering mushroom-shaped fireballs of hot gas into the Jovian sky.
10、在跳躍的顏色中爍爍發(fā)光的行星狀星云(就像上面這顆)向人們描繪出垂死恒星的最后色彩。行星狀星云實際上是一些即將消亡的恒星拋射出的氣體外殼，在學(xué)術(shù)上與行星并沒有什么關(guān)系。哈勃望遠鏡告訴人們，行星狀星云就像雪花一樣，沒有任何兩個是一樣的。
10.Glowing in vibrant colors, planetary nebulae, such as this one, represent the death rattles of dying stars. These nebulae, which are not technically related to planets, are gas clouds forced outward by a dying star. According to NASA, "Hubble's keen 'eye' disclosed that planetary nebulas are like snowflakes: no two are like." (編譯：王高山)
