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Image Gallery

December 20th, 2018

Group picture of TMT Science Forum participants, held in Pasadena, California - December 2018.

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December 20th, 2018

Visit of TMT Technical Laboratory on December 11, 2018.

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December 20th, 2018

Visit of TMT Technical Laboratory on December 10, 2018

December 19th, 2018

Attendants of “Broadening Participation in Future Telescopes” workshop on December 17, 2018, at the TMT Project Office in Pasadena, CA.

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December 10th, 2018

Group of TECI graduate students, postdoctoral researchers, and early-career professionals from partners in the Thirty Meter Telescope International Observatory visiting TMT Lab on 6 December 2018 during the annual TECI workshop. The workshop is designed to support international collaboration among the TMT partners including Caltech, Canada, China, India, Japan, and University of California. A full week program to build community among TMT future users and leaders, and connect them to current TMT leaders.

November 5th, 2018

On Saturday 03 November, TMT provided an interactive activity to Hawaii Girl Scouts at The Pearl Harbor Pacific Aviation Museum during the Girl Scouts STEM Fest 2018. The girls had a great time building telescopes and learning about our solar system and beyond.

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October 17th, 2018

“Breakthrough science with the TMT" is the 6th edition of TMT Science Forum. It will be held in Pasadena, California, Dec. 10-12, 2018. All details about the meeting organization can be found on the Forum webpage (

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October 12th, 2018

The TMT primary mirror is segmented comprising a total of 492 hexagonal segments, each about 1.44 meters (56.6 inches) across corners. The segments fit very closely together, and are spaced with gaps of only 2.5 mm (0.1 inch).

September 17th, 2018

TMT optics and system engineers and international review committee photographed at TMT’s headquarters in Pasadena on July 26, 2018 during M1S Final Design Review.

September 4th, 2018

TMT member NAOJ with their industrial partners Canon Inc. and SHIBA R&D CO. Ltd. successfully performed hexagonal cutting of a full size primary mirror segment. Metrology measurements carried out by Coordinate Measurement Machines (CMM) show that critical dimensions of parts including pockets for sensors and actuators, meet TMT stringent requirements.

Tmt instrumentationandcryotanks
August 29th, 2018

Dewars of liquid nitrogen (LN2) installed on the two Nasmyth platforms provide each TMT instrument’s cooling needs and maintain a steady state of cooling for all instruments. The total wet mass (including full cryogen load) of the CRYO components on each Nasmyth platform shall be less than 3,000 kg.

Cryo equipment
August 29th, 2018

Space is available for supply and installation of additional CRYO equipment at first decade. The CRYO system shall occupy no more than 27m2 (TBC) of floor area in the utility room of the summit facilities.

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