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NATIONAL ACADEMY OF SCIENCES NATIONAL ACADEMY OF ENGINEERING INSTITUTE OF MEDICINE NATIONAL RESEARCH COUNCIL
June 18, 2004 Current Operating Status
1990 Update to Strategy for nExploration of the Inner
Planets
1
Introduction
The responsibility of writing a strategy for exploration includes a corresponding
responsibility to assess the extent to which its recommendations are carried out. It
also requires a periodic review of the strategy to determine its relevance as its
objectives are fulfilled and as the scientific field advances. In view of this advisory
responsibility, the Committee on Planetary and Lunar Exploration (COMPLEX) has
undertaken to review and revise the 1978 report Strategy for Exploration of the
Inner Planets, 1977-1987 (National Academy of Sciences, Washington, D.C.,
1978). The committee has found the 1978 report to be generally still pertinent, with
some exceptions. COMPLEX therefore issues its new report in the form of an
update. The previous report is not superseded, but modified as described below.
The committee re-affirms the basic objectives for exploration of the planets: to
determine the present state of the planets and their satellites, to understand the
processes active now and at the origin of the solar system, and to understand
planetary evolution, including the appearance of fife and its relation to the chemical
history of the solar system.
This update incorporates as appropriate the advice provided by other relevant
reports of COMPLEX and the Space Studies Board (SSB) during the period since
the publication of the 1978 report. The committee completed the update pursuant
to the following charge:
1. Identify those portions of the 1978 strategy that remain valid and those that
require reassessment.
2. Briefly summarize significant changes in the state of scientific knowledge
regarding Mercury, Venus, the Moon, and Mars since the publication of the 1978
strategy.
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Space Studies Board
3. Revise the scientific objectives and measurement requirements for those bodies
as necessary.
4. Review the principal issues addressed by the 1978 strategy for the inner
planets, including program balance, supporting research, and international
cooperation.
Chapter 2 contains an overview of the committee's conclusions, including a listing
of all recommendations. For each planet, a concise chapter outlines progress in
the science since 1978, states the major scientific objectives, and provides a
summary of recommendations; other relevant topics pertaining to each object are
discussed as necessary (Chapters 3 to 6). In Chapters 7 to 9 the committee briefly
addresses the broader policy issues mentioned in the charge. A complete listing of
the 1978 recommendations appears as an appendix to this update.
Last update 9/26/00 at 1:58 pm
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