Thirty Meter Telescope

Astronomy's Next-Generation Observatory

TMT's Mission and Values

TMT is committed to a community model of astronomy based on the values of respect, inclusion, and mutual stewardship.

TMT's Science and Technology

TMT is an extraordinary international scientific endeavor that will revolutionize our understanding of the universe and our place within it.


Maunakea is a truly unique place.


TMT staff are part of the Hawaiʻi community and TMT firmly believes it is our kuleana (responsibility) to be active supporters of that community.

Latest From TMT

Insights from the MODHIS Midterm Conceptual Design Review
February 14th, 2024 Engineering & Technology

The Multi-Objective Diffraction-limited High-resolution Infrared Spectrograph (MODHIS) team recently conducted a midterm conceptual design review at the TMT Project Office in Pasadena on 30 January 2024. Led by Principal Investigator Dimitri Mawet (Caltech), co-Principal Investigator Michael Fitzgerald (UCLA), and Project Scientist Quinn Konopacky (UCSD), the MODHIS team showcased significant updates regarding MODHIS's design and expected...

Journey Through the Universe Celebrates 20 Years of Exploration on Hawai‘i Island
February 9th, 2024 Education & Outreach

Congratulations to Journey Through the Universe for 20 stellar years!