According to a March 13, 2014 story on Fox News, two venerable but successful Mars probes face the budget ax by the Obama administration in the FY 2015 funding request for NASA.
“NASA’s baseline budget for the year beginning Oct. 1 pulls the plug on the 10-year-old Mars rover Opportunity, newly released details of the agency’s fiscal 2015 spending plan show.
“The plan, which requires Congressional approval, also anticipates ending the orbiting Mars Odyssey mission on Sept. 30, 2016.”