Data Details

Total amounts are adjusted for inflation and set to constant 2014 dollars according to the Bureau of Labor Statistics' CPI calculator. The years 2003 - 2013 are the actual amounts spent by NASA. The years 2014 and 2015 reflect the amount allocated to NASA for Planetary Science by Congress.

Total amounts are adjusted to retain programmatic consistency, in order to make a better "apples-to-apples" comparison:

2003 - 2005: Removed funding for NASA's Deep Space Network and combined separate funding lines for Mars and Solar System exploration activities.

2004: Removed funding for Project Prometheus.

2014 - 2015: Removed $50M for that is used to pay for the Department of Energy's Radioisotope Power Program infrastructure.

2016 - 2020: These numbers are from the White House's FY2016 NASA Budget request projections, from which $57.5M was removed to account for the funding transferred to the Department of Energy's Radioisotope Power Program infrastructure.

Future missions in development are (from the FY2015 Budget request):

FY15: Mars 2020, InSight, OSIRIS-REx, Europa

FY16: Mars 2020, Discovery 13, Europa (ORISIS-REx and InSight launch)

FY17: Mars 2020, Discovery 13, Europa

FY18 - FY19: Mars 2020, New Frontiers 4, Discovery 13, Europa

FY20: Europa, New Frontiers 4 (Mars 2020 and Discovery 13 launch)

Raw data for this chart are located on this public Google Spreadsheet.