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Khabre desk
Recent reporting, analysis and explainers from the Nancy Grace Roman Space Telescope desk.
science
NASA says the Nancy Grace Roman Space Telescope has completed its observatory checkout and entered science commissioning. Teams are now testing performance, calibrating the instruments and refining image quality before science operations.
science
NASA says the Nancy Grace Roman Space Telescope’s Wide Field Instrument reached an optical error of 63 nanometers RMS after commissioning adjustments, against an image-quality requirement of about 90 nanometers RMS. The team describes the instrument’s performance as nearly 30% better than predicted.
science
NASA says the Roman Space Telescope passed fine-guidance stability tests and captured its first coronagraph images during commissioning in September 2026. The initial coronagraph observations tested focus and pointing rather than reporting a planet detection.
science
NASA has activated the Nancy Grace Roman Space Telescope’s Wide Field Instrument, a 300-megapixel infrared camera, and completed an initial test of its coronagraph. The observatory remains in commissioning, with first science images expected by early 2027.