NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Why send humans to Mars?The proposed Space Exploration Initiative (SDI) to launch a manned flight to Mars is examined in the current light of growing constraints in costs and other human requirements. Sharing the huge costs of such a program among a group of nations might become low enough for the project to be feasible. Robotic missions, equipped with enhanced artificial intelligence, appear to be capable of satisfying mission requirements at 10 percent or less, of the cost of a manned flight. Various additional pros and cons are discussed regarding both SDI generally and a Mars mission. It is suggested that R&D projects be pursued that can be better justified and can also contribute to human mission to Mars if eventually a decision to go is made.
Document ID
19910049902
Document Type
Reprint (Version printed in journal)
Authors
Sagan, Carl (JPL, Pasadena, CA; Cornell University Ithaca, NY, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Issues in Science and Technology
Volume: 7
ISSN: 0748-5492
Subject Category
LAW, POLITICAL SCIENCE AND SPACE POLICY
Distribution Limits
Public
Copyright
Other