Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Black, D. C. (London, University, Observatory, London, England; NASA, Ames Research Center Space Sciences Div., Moffett Field, Calif., United States) Date Acquired
August 8, 2013
Publication Date
February 6, 1975
Publication Information
Publication: Nature
Volume: 253
Subject Category
Lunar And Planetary Exploration Accession Number
75A21803
Distribution Limits
Public