"Nebula is an open-source cloud computing platform that was developed to provide an easily quantifiable and improved alternative to building additional expensive data centers and to provide an easier way for NASA scientists and researchers to share large, complex data sets with external partners and the public.
... Cloud computing is a significant departure from the traditional IT infrastructure model. It will require technical training as well as a shift in how our teams and programs think about IT resources. This shift will require us to change budgeting, procurement, workflow, and our approach toward processing, storing, and accessing data. As a mission-driven Agency that is reliant upon data, we will need to provide adequate education and training to employees and contractors for greater adoption." -from source: http://www.nasa.gov/open/plan/nebula.html