Thirty Meter Telescope

Astronomy's Next-Generation Observatory

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

November 4th, 2019 • Conference
TMT Science Forum 2019
June 21st, 2019 • Press Coverage
DLNR issued notice to proceed on Thirty Meter Telescope yesterday
June 20th, 2019 • News
Notice to Proceed Issued for TMT on Maunakea
June 20th, 2019 • Press Coverage
CILAS to make adaptive optics mirrors for giant Hawaii telescope
June 17th, 2019 • Associate Project Manager Blog
Video Interview with Professor Annapurni Subramaniam
June 13th, 2019 • News
TIO Signs Contract for the TMT Deformable Mirrors
June 12th, 2019 • Press Coverage
Astronomy and culture align with the Thirty Meter Telescope
June 11th, 2019 • Press Coverage
TMT’s THINK Fund invests in education for Hawaii Island students
May 28th, 2019 • News
TMT Executive Software Successfully Passes First Phase of Final Design Review
May 24th, 2019 • Associate Project Manager Blog
Trip to Mumbai for the Opening of the “Vigyan Samagam”
May 15th, 2019 • Press Coverage
TMT Hoping to add to new discoveries made atop Maunakea
May 10th, 2019 • News
TMT Featured at the Mega Science Nationwide Roadshow in India
May 9th, 2019 • Press Coverage
Reaching for the Stars: Astronomy’s Lifting Impact on Hawaii
May 9th, 2019 • Press Coverage
Catch the science bug at India’s first global expo at Nehru Centre
May 8th, 2019 • Press Coverage
A look at TMT’s potential economic impact on Hawaii’s Island economy
April 23rd, 2019 • Press Coverage
Please support TMT, Astronomy
April 15th, 2019 • Associate Project Manager Blog
Vídeo Entrevista con Gelys Trancho
April 15th, 2019 • Associate Project Manager Blog
Video Interview with Gelys Trancho
March 4th, 2019 • News
Great Progress Made on the India TMT Optical Fabrication Facility
February 26th, 2019 • News
Dr. G.C. Anupama Becomes First Woman to Lead the Astronomical Society of India
February 19th, 2019 • News
Contract Signed for TMT Primary Mirror Segment Support Production
February 5th, 2019 • Press Coverage
From this year, India set to manufacture key components for largest ground-based observ...
January 28th, 2019 • Press Coverage
Applications for STEM internships due Feb. 14
January 23rd, 2019 • News
Design and Status of TMT presented at the University of California, San Diego
January 15th, 2019 • Press Coverage
Hawaii students have IDEAS for a STEM Workforce
December 19th, 2018 • News
Broadening Participation in Future Telescopes
October 30th, 2018 • News
Hawaii Supreme Court Affirms TMT Permit
October 11th, 2018 • News
TMT Executive Software Successfully Passes First Phase of Preliminary Design Review
October 4th, 2018 • News
W. M. Keck Observatory Awarded NSF Grant To Develop Next-Generation Adaptive Optics System
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

Notice to Proceed Issued for TMT on Maunakea
June 20th, 2019

The Hawaii Department of Land and Natural Resources (DLNR) has issued a notice to proceed (NTP) to the University of Hawaii for the Thirty Meter Telescope on Maunakea. The NTP is a formal communication indicating that all pre-construction conditions and mitigation measures specifically required as a condition of the Conservation District Use Permit (CDUP) have been met. With the NTP, TMT can proceed with construction.

TIO Signs Contract for the TMT Deformable Mirrors
June 13th, 2019 Engineering & Technology

CILAS will develop the two large deformable mirrors for the Thirty Meter Telescope (TMT).

TMT Executive Software Successfully Passes First Phase of Final Design Review
May 28th, 2019 Engineering & Technology

Pasadena, CA – May 15, 2019 – The TMT Observatory Executive Software (ESW), which will provide the core functionality needed to enable observations of science programs for on-site and remote observers, recently passed the first phase of final design review.