Earlier this year a friend of mine and I were talking about the first Dream Team and a book he was reading, Dream Team: How Michael, Magic, Larry, Charles and the Greatest Team of All Time Conquered the World and Changed the Game of Basketball Forever.

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Along with celebrity panelist like Tina Fey, Charles Barkley and Larry David, comedian Tom Papa will serve as the ref, declaring winners among the pairs.

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The other firm in the mining race, Planetary Resources, has backing from several billionaire investors, including Google's Larry Page and Eric Schmidt, software executive Charles Simonyi and filmmaker James Cameron.

BBC: New venture 'to mine asteroids'