For more information about TMT Hawaii, please visit https://www.maunakeaandtmt.org and https://www.maunakeaandtmt.org/get-the-facts

Thirty Meter Telescope

Astronomy's Next-Generation Observatory
Highlights

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

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

76644781c890e0ec519611787b8df98673539284
TMT Laser Guide Star Facility Passes Design Milestone
June 3rd, 2021 Engineering & Technology

The TMT Laser Guide Star Facility (LGSF) has successfully completed the first phase of its Preliminary Design Review (PDR1). The LGSF will be responsible for generating artificial laser guide stars that will be used with TMT’s Adaptive Optics (AO) systems, including NFIRAOS, the Observatory’s first-light AO facility.

Ba93b33ed197055c56e9ec9b176c4cdf9a325765
TMT Metrology Equipment Arrives in California
June 1st, 2021 Engineering & Technology

The optical metrology and test set for TMT’s primary mirror segments has arrived at its warehouse in California. It was sent by Arizona Optical Systems (AOS) in Tucson, Arizona, on May 11 and arrived safely the day after at the TMT storage facility after a 500-mile journey. All fabrication and test tooling for the complete metrology system were also included in the freight.

F1439387f211f228806c1c2eb07d30c0f2b2a398
TMT Mirror Segment Handling Equipment Passes Preliminary Design Review
May 27th, 2021 Engineering & Technology

The handling equipment for TMT primary mirror (M1) segment recently passed its Preliminary Design Review. The custom-designed equipment and tooling will be used to safely handle mirrors within the observatory during operational activities.

Db91005ceab340c7a8f3c0d9b70288175cd5f7b0
Remembering Hugh Thompson
May 21st, 2021 TMT Partner News

TMT is deeply saddened by the passing of TMT Systems Engineer Hugh Thompson on May 7, 2021. Hugh was a colleague, good friend and inspiration to many of us who were fortunate to interact with him over his career.

Df965f9f2bc95253a80de9c9775ce9a938c3e6d6
TMT’s Telescope Structure progresses to Production Readiness
May 13th, 2021 Engineering & Technology

A virtual meeting was conducted on April 5, 2021 between representatives of the National Astronomical Observatory of Japan (NAOJ, TMT Japanese Partner Institution) and the TMT Project Office (TMTPO) Telescope Structure Subsystem (STR), Systems Engineering (SE) and Project Management (PM) teams. The goal of this closeout meeting was to verify closure of all major actions from the STR Production Readiness Review (PRR) 1 which was conducted...