Building a True Spaceship

Opinion: Mars Is Within Our Reach — Here’s How, Buzz Aldrin, AOL
“Many in Congress and elsewhere have expressed their concern that under the Obama plan, NASA will no longer be in the human spaceflight business, having turned over space transportation services to commercial firms. Under my plan, commercial carriers would fly our astronauts and cargo up to the space station, but NASA would stay in the human spaceflight business by designing and building the Exploration Module, or XM.”