For people unfamiliar with the Constellation system, and the ways it can take us to the Moon and Mars, it is useful to watch this video prepared by NASA.
The Administration intends to kill the program, ending perhaps for decades the goal of Americans returning to the Moon and making history by landing on Mars. Congress may save it or save a smaller, less-capable version; but we need the full program. Watch what Constellation can do and contact Congress to build the full Constellation system now.
Subscribe to our YouTube Channel; watch our videos and share with your friends. We offer some special NASA films which illustrate important aspects of human space exploration. www.youtube.com/savemannedspace