MSNBC The Rachel Maddow Show January 7, 2010
to preserve resources here on our own planet, by using these outer space resources. i think that's the next mission that nasa has planned for men to go out and mine that. >> 96 million light years to get styrofoam. how is it possible the thing holds together if the density is like that? >> this is one of the great mysteries about planets like this, is that we really don't understand everything there is to know about what it is that makes planets planets. and you know, keith, this goes back to that great argument there is these days about whether or not pluto was a planet. because tha...
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