In addition to MAVEN, other missions receiving NASA approval for extensions, contingent on available resources, are: New Horizons, Dawn, the Mars Reconnaissance Orbiter (MRO), the Opportunity and Curiosity Mars rovers, the Mars Odyssey orbiter, the Lunar Reconnaissance Orbiter (LRO), and NASA’s support for the European Space Agency’s Mars Express mission.
Read the full NASA feature: http://go.nasa.gov/29dbXgj
[addthis]