The flexible path was a set of destinations for further crewed space exploration in the inner Solar System proposed in the Review of United States Human Space Flight Plans Committee of 2009 and was envisioned as alternative to the Moon-first and Mars-first approaches. In 2010 president Barack Obama announced change in the space policy from the Moon-first approach (adopted previously under the Vision for Space Exploration and Constellation program) to a variety of destinations resembling the flexible path approach.