TMT is committed to a community model of astronomy based on the values of respect and mutual stewardship.
Read the continuing story about how TMT is the best in the world at what it does.
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 the successful completion of Final Design Review–1 (FDR-1) for the InfraRed Imaging Spectrograph (IRIS), held on December 8–9, 2025.
TMT is exploring a promising avenue for a new observatory based in Spain.
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).
