The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by a space shuttle in April 1990. It is named after the American astronomer Edwin Hubble. Although not the first space telescope, Hubble is one of the largest and most versatile, and is well-known as both a vital research tool and a public relations boon for astronomy. The HST is a collaboration between NASA and the European Space Agency, and is one of NASA's Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.哈勃太空望遠鏡(Hubble Space Telescope,縮寫為HST),是以天文學家愛德溫·哈勃(Edwin Powell Hubble)為名,在地球軌道的望遠鏡。哈勃望遠鏡接收地面控制中心(美國馬利蘭州的霍普金斯大學內)的指令並將各種觀測數據通過無線電傳輸回地球。由於它位於地球大氣層之上,因此獲得了地基望遠鏡所沒有的好處——影像不受大氣湍流的擾動、視相度絕佳,且無大氣散射造成的背景光,還能觀測會被臭氧層吸收的紫外線。於1990年發射之後,已經成為天文史上最重要的儀器。它成功彌補了地面觀測的不足,幫助天文學家解決了許多天文學上的基本問題,使得人類對天文物理有更多的認識。此外,哈勃的超深空視場則是天文學家目前能獲得的最深入、也是最敏銳的太空光學影像。
wiki : http://en.wikipedia.org/wiki/Hubble_Space_Telescope






