Thirty Meter Telescope

Astronomy's Next-Generation Observatory

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

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...

TMT scientists 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

TMT Telescope Control System (TCS) Making Progress Toward Preliminary Design Review
June 19th, 2018 Engineering & Technology

Work is moving forward on TMT’s Telescope Control System (TCS), which is responsible for the coordination and control of the various telescope subsystems, responding to commands received from the observatory control system and from expert user interfaces. A part of TMT’s India work-share, the TCS is technically challenging due to the large number of external interfaces and the need for efficient communication with many distributed teams from...

Thirty Meter Telescope’s THINK Fund Awards Over $1 Million in College Scholarships To Native Hawaiian and Hawaii Island Students
June 18th, 2018 Education & Outreach

Hilo, Hawaii (June 18, 2018) – The Hawaii Island New Knowledge (THINK) Fund has awarded college scholarships totaling $1,050,000 to 116 local Hawaii Island students over the past 4 years and an additional $2 plus million to STEM (Science, Technology, Engineering & Math) pursuits.

TMT Hilo office makes keiki stress relief kits for families affected by Hawaii Island volcanic activity
May 29th, 2018 Education & Outreach

TMT Hilo office makes keiki stress relief kits for families affected by Hawaii Island volcanic activity

U.S. national observatory and two extremely large telescope projects team up to enhance U.S. scientific leadership in astronomy and astrophysics
May 21st, 2018 Science & Astronomy

A new research frontier in astronomy and astrophysics will open in the mid-2020s with the advent of ground-based extremely large optical-infrared telescopes (ELTs) with primary mirrors in the 20-m – 40-m range. U.S. scientific leadership in astronomy and astrophysics will be significantly enhanced if the broad U.S. community can take advantage of the power of these new ELTs. In that context, the National Science Foundation’s (NSF) National...

TMT International Observatory Science Advisory Committee (SAC) Meets in Pasadena
April 18th, 2018 Science & Astronomy

Members of the TMT Science Advisory Committee (SAC) met in Pasadena on April 9&10, 2018 for their quarterly gathering. SAC representatives reported on their respective activities for the TMT project and discussed top-level requirements for TMT’s suite of science instruments.