TMT is committed to a community model of astronomy based on the values of respect and mutual stewardship.
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Maunakea is a truly unique place and TMT is part of the Hawaiʻi community and firmly believes it is our kuleana (responsibility) to be active supporters of that community.
TMT is an extraordinary international scientific endeavor that will revolutionize our understanding of the universe and our place within it.
The Thirty Meter Telescope (TMT) International Observatory (TIO) is pleased to announce that the Multi-Object Diffraction-limited High-resolution Infrared Spectrograph (MODHIS) has successfully completed its Conceptual Design Review (CoDR).
The Thirty Meter Telescope (TMT) International Observatory (TIO) is delighted to announce the successful completion of the Preliminary Design Review 1 (PDR-1) for the Wide Field Optical Spectrograph (WFOS), held on August 7–8, 2025, at the TIO Project Office in Pasadena, California, and via Zoom.
The Tertiary Mirror Support System and Positioner Assembly (M3SSPA) has now successfully completed its Preliminary Design Phase after the Preliminary Design Review (PDR) was held at NOIRLab in Tucson, Arizona on August 11–12, 2025.
