President Obama’s 2011 budget request for NASA cut the agency’s Constellation program completely, effectively canceling a five-year, $9 billion effort to build new Orion spacecraft and Ares rockets. This budget was released in February of 2010.

Moskowitz, C. (2011, February 14). President Obama Freezes NASA’s Budget at 2010 Levels. Retrieved from https://www.space.com/10845-nasa-2012-budget-announcement-obama.html