I do disagree with leaving out a mission to the Moon.  The Moon is a great base for launching missions to the asteroids and to Mars.  We know we can reach it within a few days, it has mineral resources, water, and an energy source for fusion.  The Moon’s gravity well is much smaller than the Earth’s gravity well and thus it easier to build bigger craft and launch them with less fuel.  Building a base on the Moon allows us to test out technologies and methods that can help us explore Mars.

This is not an argument for reestablishing the Constellation program.  Canceling Constellation was the right call as is the push to leave Low-Earth Orbit.  But skipping past such an obvious asset in our mission to Mars just doesn’t make sense.

After Apollo, NASA lost its way.  By this time, humans should have been on Mars several times and there should be a thriving lunar colony.  Heavy manufacturing should be in orbiting factories and we should be receiving our power from large solar arrays beaming power back to Earth.  What we ended up with was a Space Shuttle program that essentially limited us to low Earth orbit (LEO) and the money pit called the International Space Station.  The last “Grand Vision” is essentially a repeat of the Apollo program down to the same spacecraft designs.

By canceling the Constellation and Ares programs that were way behind schedule and had massive cost overruns, NASA was freed of the old-style model of procuring hardware and more importantly, providing launches to LEO.  Reaching LEO is a proven technology and it is time to turn this part over to the commercial sector so that it can be done more effectively and efficiently.  NASA has opened up the opportunities for building a private space sector and this will be the start of an economic boon that could eclipse even the impact of the Internet.

NASA will now be free to focus back on exploration.  The new budget is bigger than past NASA budgets and focuses on continuing the unmanned missions that have been amazing successes in the last forty years.  And the new budget contains projects that will build the infrastructure for manned exploration in the future (orbital fuel depots, automated docking systems, closed-cycle life support systems, etc.).

It is also encouraging to see that the future of space exploration is spreading beyond one government agency.  For example, an open-source approach to building a lunar base.  Spreading the dream around will help to make it more real.