Space Mining Venture
Well, I have to hand it to James Cameron. The guy thinks BIG. His latest venture, with some Google execs and Ross Perot Jr., and other people with serious economic and space-related credentials, is to mine near-Earth objects (NEOs), specifically asteroids rich in platinum-group metals.
COMMENT: Well, this is breathtaking in its ambition. "Go big or stay on Earth." I have to wonder about the transportation aspects. I wouldn't try to do this with only today's chemical propulsion. I'd want an in-space nuclear thermal propulsion system so I could shuttle back and forth, or drag small asteroids, without having to burn umpteen tons of hydrogen or kerosene that has to be hauled into space at major expense. I wish these folks luck. There would need to be a billion-plus investment to get the NTR propulsion, but otherwise I'm not sure the economics will work at all. I hope they succeed, though.