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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July 17th, 2022 • Conference
TMT at the SPIE Astronomical Telescopes + Instrumentation Meeting
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May 9th, 2022 • News
First TMT Primary Mirror Segment Assembly Successfully Manufactured and Built in India
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May 2nd, 2022 • News
TMT Helps Students Reach for the Stars at Altadena Eliot Science Fest
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April 27th, 2022 • News
Robert P. Kirshner named TIO Executive Director; Edward C. Stone announces retirement f...
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April 7th, 2022 • News
TMT’s Wide-Field Optical Spectrometer Instrument Passes Conceptual Design Review
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April 8th, 2022 • Educational
TMT News: Meet Yuko Kakazu
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April 8th, 2022 • Educational
TMT News: Meet Leinani Lozi
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April 7th, 2022 • Artwork
Section view of the WFOS instrument
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February 28th, 2022 • Education & Outreach
Journey Through the Universe 2022
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February 15th, 2022 • Associate Project Manager Blog
Meet the TMT Team: Interview with Rajalakshmi Narayanan and Chhaya Yadav
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January 19th, 2022 • News
Update on TMT High Quality Optics Polishing at Coherent
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January 19th, 2022 • Photograph
Shipping of six additional TMT finished roundels at Coherent facility in California, De...
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January 19th, 2022 • Collage
Coherent’s hands-on training in December 2021
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November 18th, 2021 • News
TMT was at AstroDay in Kona
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November 5th, 2021 • News
US Extremely Large Telescope Program Supports Vision of Decadal Survey
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November 4th, 2021 • News
TMT’s Statement on Astro2020 Decadal Survey
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November 4th, 2021 • Photograph
TMT: a sharp eye on the sky
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October 21st, 2021 • News
TMT’s Secondary and Tertiary Mirrors Coating Facility Passes Conceptual Design Review
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October 1st, 2021 • News
TMT successfully passes a formal milestone review for the planning of its future opera...
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September 8th, 2021 • News
Production of the TMT M1 mirrors ramps up at Coherent Inc.
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July 22nd, 2021 • Associate Project Manager Blog
Hexing Glass for TMT
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June 23rd, 2021 • News
Update on TMT Primary Mirror Production in the Bay Area
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June 23rd, 2021 • Photograph
TMT M1 polished roundel produced at Coherent facility in California – June 2021.
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June 3rd, 2021 • News
TMT Laser Guide Star Facility Passes Design Milestone
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April 19th, 2021 • News
First M1 Roundels Produced by Coherent for TMT Successfully Shipped to Storage Facility...
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March 8th, 2021 • News
TMT Mirror Segment Shipping Container Design and Prototypes Completed through Collabora...

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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First TMT Primary Mirror Segment Assembly Successfully Manufactured and Built in India
May 9th, 2022 Engineering & Technology

India-TMT and industry partners Larsen and Toubro (L&T) successfully manufactured and assembled the first TMT Segment Support Assembly (SSA) in L&T Coimbatore facility. Hard work paid off and India-TMT successfully passed an Assembly Readiness Review a few weeks ago, presenting their first and recently assembled TMT SSA, including all separate compliant components, which are about 450 precision parts.

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TMT Helps Students Reach for the Stars at Altadena Eliot Science Fest
May 2nd, 2022 Education & Outreach

As part of its ongoing outreach and educational activities, TMT participated in the annual Science Festival of Eliot Arts Magnet School on Saturday, April 23rd. The event provided a unique opportunity to learn about science, technology, engineering, robotics, health, and environmental activities taking place in Pasadena.

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Robert P. Kirshner named TIO Executive Director; Edward C. Stone announces retirement from TIO
April 27th, 2022

Dr. Robert P. Kirshner, Chief Program Officer for Science at the Gordon and Betty Moore Foundation, and the Clowes Professor of Science emeritus at Harvard University, has been named TIO Executive Director, effective May 15, 2022.

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TMT Participates in Journey Through the Universe 2022 on Hawaiʻi Island
April 11th, 2022 Education & Outreach

Journey Through the Universe (Journey), one of the leading astronomy education and outreach programs on Hawaiʻi Island, recently brought together students and teachers with astronomers, engineers and STEM professionals.

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TMT’s Wide-Field Optical Spectrometer Instrument Passes Conceptual Design Review
April 7th, 2022 Engineering & Technology

TMT’s Wide-Field Optical Spectrometer (WFOS), one of its three first-light instruments, successfully completed its Conceptual Design Review in February 2022. This review completed the conceptual design phase and ushered WFOS into its Preliminary Design Phase.