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MODHIS Achieves a Key Milestone with Successful Conceptual Design Review
October 9th, 2025 Engineering & Technology

The Thirty Meter Telescope (TMT) International Observatory (TIO) is pleased to announce that the Multi-Object Diffraction-limited High-resolution Infrared Spectrograph (MODHIS) has successfully completed its Conceptual Design Review (CoDR).

WFOS Preliminary Design Review 1 Successfully Completed
October 7th, 2025 Engineering & Technology

The Thirty Meter Telescope (TMT) International Observatory (TIO) is delighted to announce the successful completion of the Preliminary Design Review 1 (PDR-1) for the Wide Field Optical Spectrograph (WFOS), held on August 7–8, 2025, at the TIO Project Office in Pasadena, California, and via Zoom.

TIO Reaches Another Key Milestone with Tertiary Mirror Preliminary Design Success
September 17th, 2025 Engineering & Technology

The Tertiary Mirror Support System and Positioner Assembly (M3SSPA) has now successfully completed its Preliminary Design Phase after the Preliminary Design Review (PDR) was held at NOIRLab in Tucson, Arizona on August 11–12, 2025.

TIO gives a well-attended talk on segmented mirrors at the Habitable Worlds Obervatory conference
August 8th, 2025 Education & Outreach

TIO team members attended last week’s conference on the Habitable Worlds Observatory (HWO; a NASA missoin designed to look for signs of life on planets orbiting other stars), where they shared insights on segmented mirror technology and next-generation instrumentation.

TIO is considering the Spanish offer
July 31st, 2025

We remain committed to securing the best possible site and will evaluate Spain’s offer thoroughly and promptly.

PIzza boxes for TMT?
July 30th, 2025

Engineers and scientists over at the National Research Council in Canada are busy preparing some very special pizza boxes for TMT. But forget pepperoni, these boxes are packed with high-tech electronics that control TMT’s highly advanced adaptive optics system, NFIRAOS.

TMT Secondary Mirror Metrology & Polishing Begins
July 28th, 2025

The work on the secondary mirror polishing for the Thirty Meter Telescope (TMT) has begun.

Spain Extends Invitation for TMT to Consider La Palma Site
July 23rd, 2025

Spain’s Science Minister invited TMT to consider relocating to La Palma as the project evaluates the most suitable location for its next-generation observatory.

TIO sends staff to national meetings
June 27th, 2025 Education & Outreach

TIO sends staff to attend the summer national meetings.

Seconday mirror design is approved for production readiness
June 27th, 2025 Engineering & Technology

The Thirty Meter Telescope support and positioner assembly for its secondary mirror’s design is now complete

Displaying news articles 1 - 10 of 13 in total