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As a federal agency, the National Aeronautics and Space Administration (NASA) receives its funding from the annual federal budget passed by the United States Congress. The following charts detail the amount of federal funding allotted to NASA each year over its past fifty-year history (1958–2009) to operate aeronautics research, unmanned and manned space exploration programs. == Annual budget, 1958-2015 == Seen in the year-by-year breakdown listed below, the total amounts (in nominal dollars) that NASA has been budgeted from 1958 to 2011 amounts to $526.178 billion—an average of $9.928 billion per year. By way of comparison, total spending over this period by the National Science Foundation was roughly one-fifth of NASA's expenditures: $101.5 billion, or $2 billion a year.〔(【引用サイトリンク】title=Budget Internet Information System )〕 NASA's FY 2011 budget of $18.4 billion represented about 0.5% of the $3.4 trillion United States federal budget during that year, or about 35% of total spending on academic scientific research in the United States.〔(【引用サイトリンク】title=Federal Spending on Academic Research Continued Downward Trend in 2007 )〕 According to the Office of Management and Budget and the Air Force Almanac, when measured in real terms (adjusted for inflation), the figure is $790.0 billion, or an average of $15.818 billion per year over its fifty-year history. |} Notes for table: Sources for a part of these data: U.S. Office of Management and Budget (OMB) (needs proper citation-link, numbers here differ from NASA Pocket Statistics), Air Force Association's Air Force Magazine 2007 Space Almanac Secondary references: () () () 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Budget of NASA」の詳細全文を読む スポンサード リンク
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