List of NASA cancellations

This is a list of cancellations and terminations made by NASA.

Program terminations

• U.S. participation in ExoMars - 2012
• Mars Scout Program - 2010
• Constellation program - 2010
• New Millennium Program - 2009
• Project Prometheus - 2005

Additional examples

• NASA X-38 (Crew Return Vehicle)- 2002^[1]
• Lockheed Martin X-33 - 2001
• HL-20 Personnel Launch System - 1993^[2]

Mission cancellations (developmental)

• Gravity and Extreme Magnetism - 2012
• International X-ray Observatory - 2011
• Terrestrial Planet Finder - 2011
• Laser Interferometer Space Antenna - 2011
• Space Interferometry Mission - 2010
• Mars Telecommunications Orbiter - 2009
• Jupiter Icy Moons Orbiter - 2005
• Europa Orbiter - 2002
• Deep Space 3 (a.k.a. Starlight)^[3][4]
• Deep Space 4 (a.k.a. Champollion)^[3][4]
• Voyager program (Mars) - 1971