You are hereGemini ObservatoryInstrumentationFuture InstrumentsGNAO Team Updated December 20, 2023, by Julia Scharwaechter Content owned by gsivo Share Tweet GNAO Design Publications Science Cases Team Announcements July 1, 2025 Switchover to new GMOS-N R400 on August 1 (HST) July 1, 2025 GMOS-N B480 unavailable from July 3 (HST) for ~3 weeks View All News