By the doctor on Thursday, November 24, 2011 12:32:00
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By Noticias Ciencia de la NA on Thursday, August 04, 2011 23:29:00
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By NASA Science News on Thursday, August 04, 2011 15:37:00
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By Noticias Ciencia de la NA on Tuesday, July 26, 2011 14:42:00
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By NASA Science News on Wednesday, July 20, 2011 11:45:00
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By Noticias Ciencia de la NA on Sunday, July 17, 2011 18:53:00
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By NASA Science News on Monday, July 18, 2011 14:59:00
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By Noticias Ciencia de la NA on Sunday, July 17, 2011 16:25:00
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By NASA Science News on Wednesday, July 06, 2011 14:32:00
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By Noticias Ciencia de la NA on Tuesday, July 05, 2011 12:45:00
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By the doctor on Monday, April 18, 2011 10:05:00
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By Noticias Ciencia de la NA on Friday, July 01, 2011 14:05:00
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By Noticias Ciencia de la NA on Saturday, June 25, 2011 17:43:00
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By NASA Science News on Friday, June 24, 2011 14:55:00
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By NASA Science News on Wednesday, June 22, 2011 00:07:00
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By Noticias Ciencia de la NA on Monday, June 20, 2011 13:45:00
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By NASA Science News on Thursday, June 09, 2011 13:41:00
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By NASA Science News on Tuesday, June 07, 2011 16:08:00
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By Noticias Ciencia de la NA on Tuesday, June 07, 2011 00:33:00
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By Noticias Ciencia de la NA on Monday, June 06, 2011 23:23:00
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By NASA Science News on Friday, June 03, 2011 11:30:00
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By Noticias Ciencia de la NA on Wednesday, June 01, 2011 17:33:00
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By NASA Science News on Tuesday, May 31, 2011 14:18:00
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By Noticias Ciencia de la NA on Monday, May 16, 2011 00:14:00
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By Noticias Ciencia de la NA on Sunday, May 08, 2011 01:32:00
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By Noticias Ciencia de la NA on Saturday, May 07, 2011 18:55:00
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By NASA Science News on Friday, May 06, 2011 11:17:00
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By Noticias Ciencia de la NA on Tuesday, May 03, 2011 15:27:00
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By Noticias Ciencia de la NA on Monday, May 02, 2011 19:41:00
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By NASA Science News on Thursday, April 28, 2011 13:43:00
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By NASA Science News on Wednesday, April 27, 2011 17:26:00
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