years, four years, space-x was able to build a rocket from scratch, and put it into orbit, the help from russia and china and japan and india and, the u.s. space agency, the effort, and may be the next chapter in how we get back and forth to space and the international space station, michio, thank you very much for helping us understand what we are looking at here. a beautiful picture, and we'll leave that for a moment and coming up, we'll bring you a new report, that is disturbing and shows america's kids are falling behind countries across the world, when it comes to is, but there is hope. and we'll talk about what we need to do about this with somebody who is on the front lines of this fight, for america's schools. >> for these kids their only chance at getting into a great school depends on whether their number is picked in a lottery. >> 18... 10... 12... 2... and