CNN Fareed Zakaria GPS March 15, 2015 17:04:00
Anybody who knows what's going on and doesn't tear up, they are pretty hard. >> why send a manned mission to mars? this is going to be expensive, challenging. why do it? >> we have to. you have to send a human somewhere if you really want to find difficult answers. is there life somewhere else in our universe. is there the real possibility that humans can exist somewhere away from earth? that's really, really important. i happen to be one who believes a multi-planet species can survive in perpetuity. single planet species will die away. >> nasa says it will send humans to mars in the 2030s. th...
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