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Wednesday, Oct. 27, 2010
Brace for the race to put bases on the moon
By GWYNNE DYER
The U.S. National Aeronautics and Space Agency (NASA) has just released the full data on last year's mission to find out whether there are usable amounts of water on the moon, and the news is good. There is plenty of frozen water on the moon, plus frozen gases like methane, oxygen and hydrogen that would be useful for making rocket fuel. This will be very helpful to the Chinese and the Indians when they start to build their bases on the moon.
The United States is not going back to the moon. That plan died when President Barack Obama canceled the first new U.S. launch vehicles in 25 years, the Ares series of rockets, last February. That put an end to NASA's hopes of returning to the moon by 2020 and building bases there for further manned exploration of the solar system.
Obama promised to support the development of commercial manned spacecraft instead, but those will only be capable of low-orbit operations for the foreseeable future. Gen. Charles Bolden, the current head of NASA, loyally chimed in with blue-sky talk of a glowing future for the agency.
"Imagine trips to Mars that take weeks instead of nearly a year; people fanning out across the inner solar system, exploring the moon, asteroids and Mars nearly simultaneously in a steady stream of "firsts," burbled the general. "That is what the president's plan for NASA will enable, once we develop the new capabilities to make it a reality." Yes, and if we had some ham we could have ham and eggs, if we had some eggs.
In reality, it looks like the U.S. has already passed its Tordesillas moment (and so has Russia). As is so often the case, those who start out ahead in the race fail in the stretch, and others finish first.
The Treaty of Tordesillas, signed in 1494, two years after Christopher Columbus became the first European to land in the Americas, divided the newly discovered lands beyond Europe between Spain and Portugal along a meridian just west of the Cape Verde islands. It was immensely arrogant, of course, but there were no other countries in the business of maritime exploration at the time.
Within a hundred years, the English, the French and the Dutch had piled in too, and Spanish and Portuguese power was falling fast. In the end, England's success in appropriating very large amounts of valuable territory led to English becoming the dominant world language. This is neither a good nor a bad outcome, but it is certainly a significant one, and it has some relevance to the current situation.
The Soviet Union was the first into space, but the U.S. rapidly overtook it, and for several decades they jointly dominated the exploration of near space. But the U.S. threw its lead away in 1973, canceling the lunar exploration program when there were still three Apollo voyages scheduled, and putting nothing that would take Americans back into deep space in its place.
Dr. Mike Griffin, NASA's former head, said of Obama's decision early this year: "Only once previously has a U.S. president recommended to the Congress that this nation take a backward step in space. On that occasion, President Nixon canceled the Apollo program, a decision which will come to be regarded as one of the most strategically bankrupt decisions in human history. If such a thing is possible, this decision is even worse."
The recent confirmation by NASA that there is plentiful water as well as hydrogen, methane and ammonia available in frozen form in the lunar soil means that lunar bases are a viable option — and lunar bases are essential to any realistic program that aims to go to the other planets of this system.
You can move beyond traditional rocket fuels and come up with a fancy new system to provide the energy to drive your space ships, but you still have to have reaction mass. That will account for at least 90 percent of the weight of any vessel that ventures beyond near-Earth space, and as long as you have to haul your reaction mass all the way up from Earth's immensely deep gravity well, space flight is going to remain cripplingly expensive.
If you could get it on the moon, on the other hand, you would only be dealing with one-sixth of the Earth's gravity. What the recent mission showed that there is not just reaction mass there, but the raw materials with which to make conventional rocket fuels and enough water, the heaviest element in any life-support system, to make human bases there a practical possibility.
But they are not likely to be American bases, nor Russian ones either. Both programs have run out of fuel, and are now restricted to near-Earth operations so far as manned trips are concerned.
So are Chinese and Indian operations, so far, but the ambition is there and the money will be. Both China and India have already put unmanned space vehicles into lunar orbit, and China has already carried out manned flights in Earth orbit. These are probably the countries that own the future in space.
Gwynne Dyer's latest book, "Climate Wars," is distributed in most of the world by Oneworld.