Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Nuth, Joseph A., III (NASA Goddard Space Flight Center Greenbelt, MD, United States) Johnson, Natasha M. (NASA Goddard Space Flight Center Greenbelt, MD, United States) Date Acquired
August 26, 2013
Publication Date
April 27, 2012
Publication Information
Publication: Science
Volume: 336
Issue: 6080
Distribution Limits
Public