Highlights
Explore the latest news, events and announcements from the TMT International Observatory
July 29th, 2026 • News
The Government of Spain, with the European Investment Bank, announces a proposed financ...
March 26th, 2026 • News
Successful Final Design Review of TMT's Secondary Mirror Metrology & Polishing System
March 17th, 2026 • News
ITCC Stress Mirror Polishing FRR Successfully Completed
February 23rd, 2026 • News
TMT LGSF Optical Path Final Design Review Successfully Completed
December 19th, 2025 • News
Global Astronomy Community Articulates the Scientific Case for a Northern Hemisphere Ex...
December 16th, 2025 • News
TMT IRIS FDR-1 Successfully Completed
November 17th, 2025 • Press Coverage
Giant telescope project, long planned for Hawaii, gets cozy with Spain
November 11th, 2025 • News
TMT Explores a Promising Path Forward in Spain
October 9th, 2025 • News
MODHIS Achieves a Key Milestone with Successful Conceptual Design Review
October 7th, 2025 • News
WFOS Preliminary Design Review 1 Successfully Completed
September 17th, 2025 • News
TIO Reaches Another Key Milestone with Tertiary Mirror Preliminary Design Success
August 8th, 2025 • News
TIO gives a well-attended talk on segmented mirrors at the Habitable Worlds Obervatory ...
July 31st, 2025 • News
TIO is considering the Spanish offer
June 30th, 2025 • Engineering Announcement
TIO continues its primary mirror making. See this quarter's update!
July 28th, 2025 • News
TMT Secondary Mirror Metrology & Polishing Begins
July 26th, 2025 • Press Coverage
A Cosmic Mystery: Is China Building the World's Biggest Telescope? Robert Kirshner inte...
July 23rd, 2025 • News
Spain Extends Invitation for TMT to Consider La Palma Site
June 27th, 2025 • News
Seconday mirror design is approved for production readiness
June 12th, 2025 • Science Announcement
Read about the advantages of TMT's Multi-conjugate Adaptive Optics system in today's "d...
June 8th, 2025 • Observatory
TMT: Where the Universe Comes into Focus: a webinar describing the outstanding performa...
May 13th, 2025 • News
TMT's New Paradigm in Community Engagement in Hawai'i
TMT's Mission and Values
TMT is committed to a community model of astronomy based on the values of respect and mutual stewardship.
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Maunakea and the Community
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's Science and Technology
TMT is an extraordinary international scientific endeavor that will revolutionize our understanding of the universe and our place within it.