Money spent on human exploration should be used to develop capabilities needed for a meaningful program. Research into long space flights can be done at the International Space Station, which should therefore be vigorously supported. Abundant launch vehicles are already on the commercial market, and yet a new and very expensive launch vehicle, with undefined payload and mission, is being developed. Three spacecraft are being developed to carry astronauts to space. Does the nation need three space capsules with limited capabilities? The capability that is lacking is the one that saved Hubble and built the largest structure ever assembled and flown in space. A redesigned X-37 that can carry astronauts could provide such a capability.
Reducing the cost of space flight would be a big help. Jeff Bezos of Blue Origin and Elon Musk of SpaceX are pursuing the technology for reusable rockets. United Launch Alliance is pursuing reusable first-stage engines for its next-generation Vulcan rocket. It expects the recovery of the engines alone to reduce the propulsion cost of the booster by up to 90 percent. A fly-back booster was considered during early design studies for the space shuttle, and could be achieved today. NASA should lead the way to provide such a capability and establish U.S. leadership in launch technology.
America needs a space policy that has a vision that can build on past achievements and keep moving forward. A big part of that is construction, maintenance and servicing in low-Earth orbit. Another is international cooperation. And we should realign our goals with those of other major space-faring nations and look back to the Moon, so we again become the leaders in space. After all, we've been there before. A lunar exploration program would provide the foundation for manned missions beyond the Moon. Our eyes must look to the skies with purpose toward that limitless frontier.
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