Thirty Meter Telescope

Astronomy's Next-Generation Observatory

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

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February 6th, 2019
Happy Chinese New Year From TMT Feb.2019
February 5th, 2019 • Press Coverage
From this year, India set to manufacture key components for largest ground-based observ...
October 4th, 2018 • News
W. M. Keck Observatory Awarded NSF Grant To Develop Next-Generation Adaptive Optics System
February 4th, 2019 • Associate Project Manager Blog
Video Interview with Warren Skidmore
December 20th, 2018 • Photograph
2018 TMT Science Forum Participants
January 28th, 2019 • Press Coverage
Applications for STEM internships due Feb. 14
January 11th, 2019 • News
Call for New Membership in the TMT International Science Development Teams
January 23rd, 2019 • News
Design and Status of TMT presented at the University of California, San Diego
January 16th, 2019 • News
TMT-China Annual Assembly and TMT-HROS Workshop
January 15th, 2019 • Press Coverage
Hawaii students have IDEAS for a STEM Workforce
December 20th, 2018 • News
TMT Science Forum 2018
December 19th, 2018 • News
Broadening Participation in Future Telescopes
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November 26th, 2018 • News
Ben Gallagher, TMT Monrovia Lab
November 12th, 2018 • News
TMT's Scientific Advisory Committee Selects Design for its Second First-Light Workhors...
November 26th, 2018 • News
TMT featured in "Connected" magazine from LEMO
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October 17th, 2018 • Artwork
TMT Science Forum 2018 Poster
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November 16th, 2018 • News
TMT Monrovia Lab Overview
November 5th, 2018 • Collage
Girl Scouts STEM Fest 2018
October 30th, 2018 • News
Hawaii Supreme Court Affirms TMT Permit
December 10th, 2018 • Science Talk
2018 TMT Science Forum
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October 12th, 2018 • Artwork
Artist Concept of TMT Primary Mirror
October 18th, 2018 • News
TMT Adaptive Secondary Mirror Passes Conceptual Design
October 11th, 2018 • News
TMT Executive Software Successfully Passes First Phase of Preliminary Design Review
September 10th, 2018 • News
The TMT Primary Mirror System Successfully Passes Final Design Review

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

Design and Status of TMT presented at the University of California, San Diego
January 23rd, 2019 Science & Astronomy

Dr. Ravinder Bhatia, TMT Associate Project Manager, visited the Center for Astrophysics & Space Sciences (CASS) at the University of California, San Diego (UCSD). In Ravinder's astrophysics seminar, he presented an overview and status update of the TMT Project.

TMT-China Annual Assembly and TMT-HROS Workshop
January 16th, 2019 TMT Partner News

Beijing, China – On 19-21 December 2018, Thirty Meter Telescope China (TMT-China) Team held its science and technology annual assembly and TMT High Resolution Optical Spectrograph Instrument (HROS) Workshop at the headquarters of the National Astronomical Observatories, Chinese Academy of Sciences (NAOC).

Call for New Membership in the TMT International Science Development Teams
January 11th, 2019 Science & Astronomy

2019 ISDT Call for Membership - Applications for membership in the Thirty Meter Telescope (TMT) International Science Development Teams (ISDTs) will be accepted until 8 February 2019.

TMT Science Forum 2018
December 20th, 2018 Science & Astronomy

Pasadena, CA – 19 December, 2018 – The TMT project recently hosted its yearly Science Forum in Pasadena, CA, where the project’s headquarters is located.

Broadening Participation in Future Telescopes
December 19th, 2018 Education & Outreach

On December 17, the TMT Pasadena office hosted a workshop on “Broadening Participation in Future Telescopes”.