Читать книгу Voyage - Stephen Baxter - Страница 26

… I have decided today that the United States should proceed at once with the development of systems and technologies designed to take American astronauts on landing missions to Mars. This system will center on a new generation of rockets, exploiting nuclear power, which will revolutionize and routinize long-haul interplanetary flights.

The new year 1971 was a year of conclusion for America’s current series of manned flights to the Moon. Much was achieved in the three successful landing missions – in fact, the scientific results of the third mission have been shown to greatly outweigh the return from all earlier manned spaceflights, to Earth orbit or the Moon. But it also brought us to an important decision point – a point of assessing what our space horizons are as Apollo ends, and of determining where we go from here.

In the scientific arena, the past decade of experience has taught us that spacecraft are an irreplaceable tool for learning about our near-space environment, the Moon, and the planets, besides being an important aid to our studies of the sun and stars. In utilizing space to successfully meet needs on Earth, we have seen the tremendous potential of satellites for international communications and world-wide forecasting, and global resource monitoring.

However, all these possibilities, and countless others with direct and dramatic bearing on human betterment, will not be achieved without a continuation of the dream which has carried us so far and so fast: I mean the dream of exploration, of American and human expansion into space, the greatest frontier of all. In my decision today, I have taken account of the need to fully encourage and sustain that dream.

NASA and many aerospace companies have carried out extensive design studies for the Mars mission. Congress has reviewed and approved this effort. Preparation is now sufficient for us to confidently commence a new development program. In order to completely minimize technical and economic risks, the Space Agency will continue to cautiously take an evolutionary approach in the development of this new system. Even so, by moving ahead at this time, we can have the first components of the Mars spacecraft in manned flight test by the end of the decade, and operational a short time later. But we will not set arbitrary deadlines, as some have called for; we will make decisions as to the pace of our program in the fullness of time and with the wisdom of experience.

It is for the reason of technological robustness that I have decided against the development of the reusable Space Shuttle at this time; despite the manifest economic benefits of such a launch system if available, I am not convinced that our technology is so mature that we are ready yet to confidently tackle the huge problems posed by the project without cost overruns and delays, and many of its economic benefits should in any case be realizable from enhancements to our existing ‘throwaway’ platforms.

It is also significant that this major new national enterprise will engage the best efforts of thousands of highly skilled workers and hundreds of contractor firms over the next several years. The continued preeminence of America and American industry in the aerospace field will be an important part of the Mars mission’s payload.

We will go to Mars because it is the one place other than our Earth where we expect human life to be sustainable, and where our colonies could flourish. We will go to Mars because an examination of its geology and history will reflect back a greatly deepened understanding of our own precious Earth.

Above all, we will go to Mars because it will inspire us to clearly look beyond the difficulties and divisions of today, to a better future tomorrow.

‘We must sail sometimes with the wind and sometimes against it,’ said Oliver Wendell Holmes, ‘but we must sail, and not drift, nor lie at anchor.’ So with man’s epic voyage into space – a voyage the United States of America has led and still shall lead. Apollo has returned to harbor. Now it is time to swiftly build new ships, and to purposefully sail further than our ancestors could ever have dreamed possible …

Public Papers of the Presidents of the United States: Richard M. Nixon, 1972 (Washington DC: Government Printing Office, 1972)