Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Okeefe, J. A. (NASA Goddard Space Flight Center Greenbelt, Md., United States) Date Acquired
August 9, 2013
Publication Date
August 1, 1978
Publication Information
Publication: Scientific American
Volume: 239
Subject Category
Lunar And Planetary Exploration Accession Number
78A44278
Distribution Limits
Public