Astronaut pairs with unlikely collaborators to benefit charity
                                
                                
                                    (Newser) -
                                    What’s next for a man who’s walked on the moon? For 79-year-old astronaut Buzz Aldrin, it’s recording a rap song, USA Today reports. “I'm not too good at carrying a tune, but I do have rhythm,” says Aldrin, who collaborated with Snoop Dogg, Soulja Boy,...