Scientific American reports that an ongoing budget crunch at NASA may spell doom for the Spitzer Space Telescope, the agency having "taken stock of its fleet of orbiting astrophysics telescopes and decided which to save and which to shutter. Among the winners were the Hubble Space Telescope, the Chandra X-Ray Observatory and the Kepler planet-hunting telescope, which will begin a modified mission designed to compensate for the recent failure of two of its four stabilizing reaction wheels." Also from the SciAm article: "Until JWST comes online, no other telescope can approach Spitzer’s sensitivity in the range of infrared light it sees. The Senior Review report noted that Spitzer had the largest oversubscription of any NASA mission from 2013 to 2014, meaning that it gets about seven times more applications for observing time from scientists than it can accommodate. ...'The guest observing programs were very powerful because you get people from all over the world proposing ideas that maybe the people on the team wouldn’t have come up with,' [senior review panel chair Ben R.] Oppenheimer says. 'But it’s got to be paid for.'"