As Space Priorities Shift, Orbiting Station Takes On a Central Role, NY Times

"NASA's Moon program, known as Constellation, has been hamstrung. Although pieces of it could survive in bills under consideration in Congress, it remains unclear what rockets NASA is to build, what their destinations would be and how long it would take to get there. Without the space station, NASA's financing of commercial rockets to take crew and cargo there would almost certainly evaporate. And without government financing, companies would be unlikely to invest billions of dollars to pursue a speculative market."