Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
He, Helen (Smithsonian Astrophysical Observatory Cambridge, MA United States) McDowell, Jonathan (Smithsonian Astrophysical Observatory Cambridge, MA United States) Conroy, Maureen (Smithsonian Astrophysical Observatory Cambridge, MA United States) Date Acquired
August 19, 2013
Publication Date
January 1, 1997
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.