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摘要： https://www.ted.com/talks/tabetha_boyajian_the_most_mysterious_star_in_the_universe/transcript00:12Extraordinary claims require extraordinary evidence 阅读全文

摘要： https://www.ted.com/talks/james_green_3_moons_and_a_planet_that_could_have_alien_life/transcript00:12Is there life beyond Earth in our solar system? 0 阅读全文

摘要： https://www.ted.com/talks/dave_brain_what_a_planet_needs_to_sustain_life/transcript 00:12I'm really glad to be here. I'm glad you're here, because tha 阅读全文

摘要： https://www.ted.com/talks/stephen_hawking_asks_big_questions_about_the_universe/transcript00:13There is nothing bigger or older than the universe. The 阅读全文