NASA Hubble Space Telescope (HST) view of the magnificent spiral galaxy NGC 4603, the most distant galaxy in which a special class of pulsating stars called Cepheid variables have been found.
哈勃太空望远镜(HST)拍摄的壮丽的漩涡星系ngc 4603，现今发现一类特殊的变星——造父变星的最远的星系。
Hubble Space Telescope (HST) : Most sophisticated optical observatory ever placed into orbit around Earth.
哈伯太空望远镜：置于地球轨道上最精密的光学天文台。
应用推荐