Launching their large space station will require a new heavy lift vehicle, the Long March 5, which is still in development and behind schedule.

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Constellation would have developed a heavy lift launch vehicle, crew capsule, and other technology needed to return astronauts to the Moon, and then eventually carry them on to Mars.

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It will probably direct that development of a new heavy lift launch vehicle begin much sooner based on technology already in hand, and that the crew capsule being developed for the canceled Constellation program be retained for other purposes.

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"This new heavy-lift launch vehicle will make it possible for explorers to reach beyond our current limits, to nearby asteroids, Mars and its moons, and to destinations even farther across our solar system, " William Gerstenmaier, associate administrator for the Human Exploration and Operations Mission Directorate at NASA Headquarters in Washington, D.

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Following completion of the current Ares V super-heavy-lift rocket program, the Space Launch System, I believe that the government should commercialize all future launch vehicle development and operations.

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