Thirty Meter Telescope

Astronomy's Next-Generation Observatory

Explore the latest news, events and announcements from the TMT International Observatory

December 10th, 2018 • Science Talk
2018 TMT Science Forum
August 15th, 2018 • Photograph
TMT International Observatory Board of Directors Visit the project’s technical laborato...
September 10th, 2018 • News
The TMT Primary Mirror System Successfully Passes Final Design Review
August 14th, 2018 • News
Thirty-Eight Students Complete Akamai Summer Internship Program
August 8th, 2018 • Press Coverage
Supreme Court rules in favor of state on TMT sublease
July 24th, 2018 • Associate Project Manager Blog
Future Mariners: Astrometry with TMT Part 2
July 10th, 2018 • Associate Project Manager Blog
Future Mariners: Astrometry with TMT Part 1
July 9th, 2018 • News
Invitation to Participate in Development of Exemplar Key Science Programs For GMT and TMT
July 5th, 2018 • News
TMT Recognized for Contributions to Hawai'i Island Schools and Educational Programs
June 18th, 2018 • News
Thirty Meter Telescope’s THINK Fund Awards Over $1 Million in College Scholarships To N...
June 26th, 2018 • Photograph
TMT Akamai Interns at the Project Office - 22 June, 2018
June 13th, 2018 • News
TMT's Mirror Blank Production is Underway
June 19th, 2018 • News
TMT Telescope Control System (TCS) Making Progress Toward Preliminary Design Review
May 21st, 2018 • News
U.S. national observatory and two extremely large telescope projects team up to enhance...
May 29th, 2018 • News
TMT Hilo office makes keiki stress relief kits for families affected by Hawaii Island v...
April 19th, 2018 • Associate Project Manager Blog
Sharper Focus, Part 2 - How TMT’s Adaptive Optics Will Work
April 18th, 2018 • News
TMT International Observatory Science Advisory Committee (SAC) Meets in Pasadena
What is TMT?

The Thirty Meter Telescope is a new class of extremely large telescopes that will allow us to see deeper into space and observe cosmic objects with unprecedented sensitivity.

What will TMT Explore?

TMT will be a unique tool for probing many outstanding open questions in astronomy.

Who is building TMT?

The Thirty Meter Telescope is being designed and developed by the TMT International Observatory LLC (TIO).

Our Story So Far...

The Board of the Thirty Meter Telescope selected Maunakea in July 2009 after a rigorous five-year campaign spanning the entire globe that measured virtually every atmospheric feature that might affect the performance of the telescope.

Latest From TMT

The TMT Primary Mirror System Successfully Passes Final Design Review
September 10th, 2018 Engineering & Technology

PASADENA (July 26-27, 2018)– The Thirty Meter Telescope Optics Group recently achieved a critical milestone by passing its Primary Mirror Optics System (M1S) final design review. The review board, comprised of international reviewers and observers from various institutions including ESO, ITCC, JPL, JWST/Ball Aerospace, KECK, NAOJ, NIAOT, and the TMTPO*, met at TMT headquarters in Pasadena.

Thirty Meter Telescope’s Cryogenic Cooling System Passes Conceptual Design Review
August 29th, 2018 Engineering & Technology

PASADENA July 11, 2018 – The conceptual design of TMT’s Cryogenic Cooling System (CRYO) has passed its conceptual design review. Engineers from the Technical Institute of Physics and Chemistry (TIPC) of the Chinese Academy of Sciences (CAS) joined TIO engineers at the project office to present the system that will be used to maintain parts of TMT’s first-light science instruments at cryogenic temperatures of 77 K.

Thirty-Eight Students Complete Akamai Summer Internship Program
August 14th, 2018 Education & Outreach

The Akamai Workforce Initiative, a local program dedicated to advancing Hawai‘i college students into science and technology careers, recently wrapped up its 2018 summer internship program with a series of symposiums highlighting the interns’ work. With lead funding from the Thirty Meter Telescope, the Akamai Internship Program provides community college students and undergraduates with summer projects at observatories and other high tech...

Invitation to Participate in Development of Exemplar Key Science Programs For GMT and TMT
July 9th, 2018 Science & Astronomy

The National Science Foundation’s (NSF) National Optical Astronomy Observatory (NOAO) and its collaborative partners, the Thirty Meter Telescope International Observatory (TIO) and the Giant Magellan Telescope Organization (GMTO) invite all interested U.S. scientists to participate in the development of exemplar Key Science Programs (KSPs) for the Giant Magellan Telescope (GMT) and Thirty Meter Telescope (TMT), preferably working in concert.