Lily的Scalers Talk第八轮新概念朗读持续力训练Da

L55-2:From the earth: Greetings

Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop. But how would we find such a planet? At present, there is no telescope in existence that is capable of detecting the presence of life. The development of such a telescope will be one of the great astronomical projects of the twenty-first century.

It is impossible to look for life on another planet using earth-based telescopes. Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets. Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles in our solar system.

alternatively /ɔːlˈtɜːrnətɪvli/  (引出第二种选择或可能的建议)要不，或者, 反之

orbit  /ˈɔːrbɪt/ 运行轨道

telescope  望远镜

astronomical  /ˌæstrəˈnɑːmɪkl/  天文学的;天文的;

generate  /ˈdʒenəreɪt/  生成;产生;引起

particle /ˈpɑːrtɪkl/  微粒、粒子