BY THE NUMBERS: SPENDING ON SPACE
NASA's R&D outlays, in 2009 dollars, for the 1969 fiscal year
NASA's R&D spending for the 2007 fiscal year
Fewer NASA employees in 2008 than in 1969 (about 169,113 now to 218,345 then)
The percentage of the federal space budget that the Defense Department used in 2007, up from 33 percent in 1969
The share of the federal budget that NASA receives. In the mid-1960s, at the height of the Apollo program, it received just under 4 percent.
SOURCE: Aerospace Industries Association