The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Launch Approval Processes for the Space Nuclear Power and Propulsion Enterprise
Science and Technology Policy Institute
This document examines the basis for the current launch approval process; identifies how the time and cost of the process breaks down; and analyzes if and how the current system might be made more safe, timely, and affordable.