20190514 周一 Day212

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原文
[Day 212 2019-05-14]
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.

2019-05-14]
ɛl55-2: frɒm ði ɜːθ: ˈgriːtɪŋz
ɔːlˈtɜːnətɪvli, ɪf ðə stɑː wɜː smɔːl, ðə laɪf-səˈpɔːtɪŋ ˈplænɪt wʊd hæv tuː hæv ə kləʊs ˈɔːbɪt raʊnd ɪt ænd ˈɔːlsəʊ prəˈvaɪd ðə ˈpɜːfɪkt kənˈdɪʃənz fɔː laɪf fɔːmz tuː dɪˈvɛləp. bʌt haʊ wʊd wiː faɪnd sʌʧ ə ˈplænɪt? æt ˈprɛznt, ðeər ɪz nəʊ ˈtɛlɪskəʊp ɪn ɪgˈzɪstəns ðæt ɪz ˈkeɪpəbl ɒv dɪˈtɛktɪŋ ðə ˈprɛzns ɒv laɪf. ðə dɪˈvɛləpmənt ɒv sʌʧ ə ˈtɛlɪskəʊp wɪl biː wʌn ɒv ðə greɪt ˌæstrəˈnɒmɪkəl ˈprɒʤɛkts ɒv ðə ˈtwɛnti-fɜːst ˈsɛnʧʊri.
ɪt ɪz ɪmˈpɒsəbl tuː lʊk fɔː laɪf ɒn əˈnʌðə ˈplænɪt ˈjuːzɪŋ ɜːθ-beɪst ˈtɛlɪskəʊps. ˈaʊər əʊn wɔːm ˈætməsfɪər ænd ðə hiːt ˈʤɛnəreɪtɪd baɪ ðə ˈtɛlɪskəʊp wʊd meɪk ɪt ɪmˈpɒsəbl tuː dɪˈtɛkt ˈɒbʤɪkts æz smɔːl æz ˈplænɪts.ˈiːvən ə ˈtɛlɪskəʊp ɪn ˈɔːbɪt raʊnd ði ɜːθ, laɪk ðə ˈvɛri səkˈsɛsfʊl Hubble ˈtɛlɪskəʊp, wʊd nɒt biː ˈsjuːtəbl bɪˈkɒz ɒv ðə dʌst ˈpɑːtɪklz ɪn ˈaʊə ˈsəʊlə ˈsɪstɪm.

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