2014 NASA Astrophysics Senior Review
Spitzer: "Given the budget climate, the SRP cannot recommend funding of Spitzer at the levels requested. Should the mission be unable to operate given the levels of funding recommended through FY18, the mission should plan, in consultation with NASA HQ, for termination."
NASA Response to the 2014 Senior Review for Astrophysics Operating Missions
"Spitzer Space Telescope: The Spitzer mission extension for FY 2015 is not approved due to the constrained budget conditions and based on the findings and recommendations of the Senior Review report."
"Widefield Infrared Survey Explorer (WISE): The MaxWISE proposal was recommended for selection by the Senior Review. However, the only source of funding would be to displace funding from higher rated operating missions in the Senior Review. Due to constrained budget conditions, the MaxWISE proposal is declined."