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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February 6th, 2020 • Photograph
Members Receiving Inspection Team for TMT Mirror blanks delivered at the India TMT Opti...
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February 21st, 2020 • News
TMT Scientific Advisory Committee Holds First Meeting of the New Decade in Pasadena
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February 6th, 2020 • News
Successful Receiving Inspection of 18 Mirror Blanks in India
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January 28th, 2020 • News
Eliot Arts Magnet Academy's Science Night
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November 1st, 2019 • News
TMT Primary Mirror Segment Support Assembly Integration
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July 23rd, 2019
TMT e-Newsletter: News about TMT in Hawaii
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January 24th, 2020 • News
Michael Bolte at #AAS235 January 2020 meeting
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January 7th, 2020 • Photograph
US ELT Group Picture from AAS 235
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January 22nd, 2020 • Artwork
Perspectives of TMT M3 System (M3S)
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January 22nd, 2020 • News
TMT Tertiary Mirror Passes Preliminary Design Review
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January 21st, 2020 • News
Primary Mirror Segment Production has started at Coherent
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December 20th, 2019 • News
TMT Observatory Safety System Passes Preliminary Design Review
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December 20th, 2019 • Artwork
TMT Card 2019
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December 18th, 2019 • Press Coverage
Hayashi Saeko: Three Decades Pushing the Limits of Astronomical Observation with the Su...
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December 13th, 2019 • News
Amazing Impact of THINK Fund Program on Hawaii Island
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December 11th, 2019 • News
First Two TMT Mirror Segment Demonstrators Installed at the Monrovia lab.
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November 27th, 2019 • Associate Project Manager Blog
Tuck-In Time: Integrating Glass with Metal
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November 13th, 2019 • News
TMT Project Engineers at Vertical Laboratories in California test TMT Warping Harness C...
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November 15th, 2019 • News
TMT Science Forum 2019 in Xiamen, China
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October 15th, 2019 • Photograph
Participants of the TMT Common Software Pre-Shipment Review on 18 September 2019, at th...
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October 28th, 2019 • News
TMT Board of Governor Member Dr. Saku Tsuneta Visits TMT Technical Lab
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October 15th, 2019 • News
TMT Common Software Successfully Passes Pre-Shipment Review
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August 22nd, 2019 • News
News about TMT in Hawaii
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October 2nd, 2019 • News
TMT Executive Director Dr. Edward Stone Receives 2019 Shaw Prize in Astronomy
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October 1st, 2019 • News
TMT’s Telescope Control System Passes Preliminary Design Review
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July 9th, 2019 • News
Coffee Chat on Mirror Segment Fabrication

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 Scientific Advisory Committee Holds First Meeting of the New Decade in Pasadena
February 21st, 2020 Science & Astronomy

Pasadena, CA – 06 February 2020 - TMT Science Advisory Committee (SAC) members and project office staff recently met at the Project Office in Pasadena.

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Successful Receiving Inspection of 18 Mirror Blanks in India
February 6th, 2020 Engineering & Technology

One of TMT’s most important components – its huge primary mirror that spans over 30 meters – continues to be manufactured around the world.

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Eliot Arts Magnet Academy's Science Night
January 28th, 2020 Education & Outreach

TMT participated in the 3rd and biggest Annual Science Night of Eliot Arts Magnet Academy on Friday January 24th.

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TMT Tertiary Mirror Passes Preliminary Design Review
January 22nd, 2020 Engineering & Technology

Pasadena, CA, January 13, 2020 – The design of the Thirty Meter Telescope’s Tertiary Mirror (M3) recently passed the first part of its Preliminary Design Review, which took place over two days in November 2019.