seres de otro planeta + videos

tomese la molestia de ver el 1 videos link: http://www.youtube.com/watch?v=nD3vascSntA link: http://www.youtube.com/watch?v=9WY2WJkASzA&feature=fvst link: http://www.youtube.com/watch?v=RWYvfBotPaM link: http://www.youtube.com/watch?v=VfGil3r8LQw&feature=related link: http://www.youtube.com/watch?v=GAuHTPhzibM&feature=related si emberdad quieren saber mas pasen este http://www.taringa.net/posts/ciencia-educacion/10003657/Que-tan-grande-es-el-universo.html