Астероидно-кометная опасность
Лекция д.ф.-м.н. Сергея Язева в Новосибирском планетарии, февраль 2016 года.
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6 months ago 00:03:40 2.6K
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1 year ago 00:44:15 51.2K
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2 years ago 00:57:34 62.5K
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4 years ago 00:49:48 877
