Low lunar orbit, at the precision mapping altitude of 50 kilometers, is substantially different from our experiences at other planets.

LRO, in all respects, is a unique and challenging planetary mission.

The velocities and forces involved in anything at orbital altitudes were enough to kill a human with just the rounding error. At their speeds, the friction from air too thin to breathe would set them on fire.

We've made a number of checks on the data and still believe the altitude data they provided the board is correct.

Fifty-six percent of the audience was under 25 with 58 percent male, ... substantially above average for males and females and all age groups. Those scores indicate the audience will broaden beyond the 'Saturday Night Live' crowd.

We launch when we're kind of in the same orbit that they are in terms of being matched up in inclination in space, and we're just in a little different altitude.