[生命的起源]English.docVIP

1 00:00:33,033 -- 00:00:36,952 Our universe was born some 15 billion years ago ... 2 00:00:36,995 -- 00:00:41,165 in a great eruption we call The Big Bang. 3 00:00:41,833 -- 00:00:47,046 Space dilated and billions of galaxies formed in the cosmos. 4 00:00:47,505 -- 00:00:51,967 Each galaxy contains billions of stars. 5 00:00:54,721 -- 00:00:59,058 Black holes too, made their appearance. 6 00:02:18,012 -- 00:02:21,056 In one of the vast spirals of our own galaxy — 7 00:02:21,141 -- 00:02:24,184 the Milky Way — the Sun and the Earth — 8 00:02:24,227 -- 00:02:29,148 five billion years ago, first took the cosmic stage. 9 00:02:31,067 -- 00:02:36,029 This film tells the story of lifes beginnings and its evolution. 10 00:02:36,072 -- 00:02:38,615 We will see as the tale unfolds. 11 00:02:38,658 -- 00:02:43,120 Forms of life, much like the earliest to exist on Earth. 12 00:02:43,163 -- 00:02:46,957 Most of which have been long extinct. 13 00:02:52,172 -- 00:02:54,173 The Sun, with its immense corona, 14 00:02:54,215 -- 00:02:57,551 was the energy source that fueled our corner of the universe ... 15 00:02:57,594 -- 00:03:00,220 when the Earth was but a gigantic furnace. 16 00:04:31,062 -- 00:04:33,939 The first rocks began to crystallize. 17 00:04:38,945 -- 00:04:41,863 Slowly, the Earth cooled. 18 00:04:52,292 -- 00:04:54,543 This Earth was a desert ... 19 00:04:54,585 -- 00:04:58,797 No animals, no plants, no life. 20 00:04:58,840 -- 00:05:00,507 And no blue skies ... 21 00:05:00,550 -- 00:05:04,261 for the atmosphere contained no oxygen. 22 00:05:12,979 -- 00:05:15,939 There was no water on the Earths surface. 23 00:05:15,982 -- 00:05:22,321 Cast forth by volcanic eruptions, it collected all of it in the skies above. 24 00:05:45,511 -- 00:05:47,971 The first rain ... 25 00:05:59,484 -- 00:06:03,570 Boiling hot, it poured down for millions of years. 26 00:06:18,586 -- 00:06:23,590 Because of the Earths mass and its position relative to the Sun, 27 00:06:23,633 -- 00:06