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Neil deGrasse Tyson: "America lost its exploratory compass" - Rice commencement · HackerTrans

Neil deGrasse Tyson: "America lost its exploratory compass" - Rice commencement(youtube.com)

1 points·by abstractbill·vor 13 Jahren·0 comments

Neil deGrasse Tyson: "America lost its exploratory compass" - Rice commencement

http://www.youtube.com/watch?v=1x6ymwJHYSk

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