After 3 years of blindness, the Hubble Space Telescope’s near-infrared vision has been restored. Prematurely running out of its nitrogen-ice coolant in 1999, Hubble’s Near Infrared Camera and Multi-Object Spectrometer (NICMOS) was brought back to life in March when astronauts installed a neon-gas refrigerator (SN: 3/16/02, p.
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