To see the bigger picture, it can help to step back a bit from your current position. Sometimes you need to consider the past to inform your vision for the future. John Logsdon does just that in a guest blog on SpaceNews.com, "The End of the Apollo Era -- Finally?"
John has devoted his professional career to understanding how space policy is made, and the current debate over NASA's plan for human spaceflight is just one more chapter in a long-running story he has followed for decades. But today's chapter marks a crisis in the story, a turning point that may shape space exploration for this century.
His essay illuminates the debate, whether you support NASA's new direction or want to keep to the Constellation program. You can check it out online >>