History and forecast of NASA major flight mission Announcements of Opportunity (open competitions). Compiled from NASA NSPIRES data, National Academies reports, NASA press releases, program websites, and other sources.
1994-07-01 00:00:00
Discovery
Selected: Lunar Prospector, Stardust
1996-09-01 00:00:00
Pathfinder 1
Selected: GRACE, Vegetation Canopy Lidar
1996-09-20 00:00:00
Discovery
Selected: GENESIS, CONTOUR
1998-03-31 00:00:00
Discovery
Selected: MESSENGER, Deep Impact
1998-09-01 00:00:00
Pathfinder 2
Selected: CLOUDSAT, CALIPSO
2001-03-26 00:00:00
Space Technology 6
Selected: Autonomous Sciencecraft Experiment, Inertial Stellar Compass
2003-02-03 00:00:00
Small Explorer
Selected: IBEX and NuSTAR
2003-02-18 00:00:00
Space Technology 8
Selected: Dependable Microprocessor, UltraFlex Solar Array, SAILMAST Ultra Lightweight Boom, Thermal Loop
2003-10-10 00:00:00
New Frontiers 2
Finalists: MoonRise, Juno; Selected: Juno
2010-06-07 00:00:00
Discovery
Finalists: GEMS (Mars), TiME (Titan), Comet Hopper
2011-03-01 00:00:00
Tech Demo Missions
Selected: Laser Communications Relay, Deep Space Atomic Clock, Solar Sail