NASA's budget for financial year (FY) 2020 is $22.6 billion.[1] It represents 0.48% of the $4.7 trillion the United States plans to spend in the fiscal year.[2]
This is as per Wikipedia.
This is a substantial decrease. Note the below:
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| NASA's budget as percentage of federal total, from 1958 to 2017 |
Since its inception, the United States has spent nearly US$650 billion (in nominal dollars) on NASA. When adjusted for inflation via the GDP deflator index the cumulative figure is closer to $1.19 trillion, an average of $19 billion per year over its entire history.
The Classified Space Program
This is not the full story however. The secret space program, under the the military, has meanwhile become a black budget item, meaning there is no public oversight, and rumours of one certain years budget securing in excess of 2 Trillion dollars are given legitimacy by the dubious means they were secured.
The secret space shuttle for example recently completed a 2 YEAR mission!
Detailed
NASA FY 2022 Budget Request, released May 28, 2021
Initial FY 2022 Budget Request Summary (released April 20, 2021)
Reports and Plans
FY 2021 Volume of Integrated Performance (8 MB PDF)
Previous Years' Budget Requests
FY 2021 |FY 2020 | FY 2019 | FY 2018 | FY 2017 | FY 2016 | FY 2015 | FY 2014 | FY 2013 | FY 2012 | FY 2011 | FY 2010 | FY 2009 | FY 2008 | FY 2007 | FY 2006 | FY 2005 | FY 2004 | FY 2003 and Earlier