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

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March 1st, 2021 • Education & Outreach
Journey Through the Universe 2021
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March 16th, 2021 • News
TMT & Larson Packaging Company designed and prototyped a crate for TMT mirror segments
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February 3rd, 2021 • News
TMT Selects Coherent for Hexagonal Cutting of Mirror Segments
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January 29th, 2021 • News
TMT PROJECT MANAGER DR. GARY SANDERS RETIRES AFTER NEARLY 17 YEARS
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March 12th, 2021 • Photograph
TMT Polished Mirror Assembly Measurement at Arizona Optical Systems (AOS) Lab
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March 8th, 2021 • News
TMT Mirror Segment Shipping Container Design and Prototypes Completed through Collabora...
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February 25th, 2021 • Education & Outreach
Native Hawaiian Perspectives
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April 28th, 2020 • News
Scientists Attend First TMT-GMT Joint Science Advisory Committee Meeting
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February 1st, 2021 • News
Approval of the first Production Roundel for Thirty Meter Telescope’s Primary Mirror
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January 26th, 2021 • News
TMT’s Telescope Utility Services Final Design Reaches Huge Milestone
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December 7th, 2020 • News
Dr. Gary Sanders to Retire
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October 26th, 2020 • News
TMT Optical Test Instruments System Passes Preliminary Design Review
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September 8th, 2020 • News
TMT Optical Cleaning System Reaches Design Milestone
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June 18th, 2020 • Artwork
Rendering of TMT’s Cryogenic Cooling System (CRYO) Envelopes on the telescope Nasmyth P...
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July 23rd, 2020 • News
Conceptual Design of TMT’s Wide-Field Optical Spectrometer Instrument Progresses
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April 29th, 2020 • News
TMT’s M1 Metrology Frame in Production
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April 23rd, 2020 • Photograph
Cross-section view of TMT Enclosure

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

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TMT Mirror Segment Shipping Container Design and Prototypes Completed through Collaborative Effort with Larson Packaging Company
March 8th, 2021 Engineering & Technology

TMT, in partnership with Larson Packaging Company, recently celebrated the successful design and completion of TMT’s Primary Mirror Assembly Shipping Container (PMASC). The shipping container will enclose and protect TMT’s primary mirror segments during transport and storage between their international destinations.

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TMT Selects Coherent for Hexagonal Cutting of Mirror Segments
February 3rd, 2021 Engineering & Technology

A major milestone for the international Thirty Meter Telescope project (TMT) was reached in October 2020, as TMT selected California-based Coherent, Inc. for the Hexagonal cutting of the US allocation of its Primary Mirror (M1) segments. Coherent is one of the world’s leading providers of photonic solutions, including lasers and custom optics, and has extensive experience in large-scale precision optics and assemblies, such as those required...

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Approval of the first Production Roundel for Thirty Meter Telescope’s Primary Mirror
February 1st, 2021 Engineering & Technology

The Thirty Meter Telescope Optics Group recently reached a critical production milestone, with the approval of the first polished roundel (# SN023) for TMT’s Primary Mirror (M1). Teams at TIO, NAOJ, and Canon reviewed the manufacturing operations required to turn a meniscus mirror blank into a polished roundel, and the roundel was confirmed to meet all requirements set by the TMT Project. This approval obtained in December 2020 validates years...

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TMT PROJECT MANAGER DR. GARY SANDERS RETIRES AFTER NEARLY 17 YEARS
January 29th, 2021 TMT Partner News

Today about 100 friends and colleagues joined virtually to celebrate and honor Dr. Gary Sanders, who officially retired at the start of 2021 after nearly 17 years of leading the Thirty Meter Telescope (TMT) as Project Manager.

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TMT’s Telescope Utility Services Final Design Reaches Huge Milestone
January 26th, 2021 Engineering & Technology

As an extremely complex organization of systems all interacting together, TMT will require an elaborate Telescope Utility Services (TUS) infrastructure to enable operations within the observatory, across the summit facilities, enclosure, and telescope. The first tier of TMT’s TUS successfully passed its Final Design review, covering elements of the design that pertain to the Telescope Structure and its various interfaces, via video...