He calls code writers and engineers "cool." Now, Black Eyed Peas star will.i.am (pictured here with astronaut Leland Melvin) plans to study computer programming this fall at the California Institute of the Arts. You can take the class with him: It's a free, online course called a MOOC! 

Want to help save the planet? Design "greener" buildings like this living lab that recently opened at the University of British Columbia in Vancouver, Canada. The Centre for Interactive Research on Sustainability uses wood destroyed by mountain pine beetles, produces power from the sun, and recycles rainwater for drinking. It also boosts lunch-room recycling and other green habits.  

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