大麥哲倫星云 由哈勃太空望遠(yuǎn)鏡拍攝的大麥哲倫星云 在1990年的這一天，哈勃太空望遠(yuǎn)鏡進(jìn)入了發(fā)現(xiàn)號(hào)航天飛機(jī)的貨艙軌道。此后不久，它開始了其持續(xù)的任務(wù)，即從低地球軌道捕獲我們的宇宙圖像，而沒有云層的阻礙和大氣的扭曲。就像它的同名天文學(xué)家愛德溫·哈勃（Edwin Hubble）一樣，哈勃太空望遠(yuǎn)鏡改變了我們對(duì)宇宙的理解。望遠(yuǎn)鏡的一些最大貢獻(xiàn)包括它的“深場(chǎng)圖像”（可追溯數(shù)十億光年）或它令人jaw目結(jié)舌的離家較近的物體的圖像，例如今天首頁(yè)上的圖像，其中顯示出一團(tuán)團(tuán)熾熱的氣體和深色塵埃銀河系的衛(wèi)星星系之一，大麥哲倫星云。

美國(guó)航空航天局（NASA）估計(jì)，哈勃的任務(wù)將再持續(xù)10-20年。明年，詹姆斯·韋伯太空望遠(yuǎn)鏡將把它送入軌道，該望遠(yuǎn)鏡將能夠觀測(cè)到更遠(yuǎn)的太空，并在更大的波長(zhǎng)范圍內(nèi)具有更高的靈敏度。

原文:

On this day in 1990, the Hubble Space Telescope entered orbit in the cargo bay of the space shuttle Discovery. Shortly thereafter, it began its continuing mission to capture images of our universe from low Earth orbit, free of the obstructions of clouds and the distortions of the atmosphere. Like its namesake, the great astronomer Edwin Hubble, the Hubble Space Telescope has transformed our understanding of the cosmos. Some of the telescope's greatest contributions include its Deep Field Images—which peer back billions of lightyears—or its with jaw-dropping images of objects closer to home, like the one on today's homepage, which shows a maelstrom of glowing gas and dark dust within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud.NASA estimates that Hubble's mission will continue for another 10-20 more years. Next year, it will be joined in orbit by the James Webb Space Telescope, which will be able to peer even farther into space and with greater sensitivity across more wavelengths.

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