Thirty Meter Telescope

Astronomy's Next-Generation Observatory

TMT's Mission and Values

TMT is committed to a community model of astronomy based on the values of respect and mutual stewardship.

Did you know ...?

Read the continuing story about how TMT is the best in the world at what it does.

Maunakea and the Community

Maunakea is a truly unique place and TMT is part of the Hawaiʻi community and firmly believes it is our kuleana (responsibility) to be active supporters of that community.

TMT's Science and Technology

TMT is an extraordinary international scientific endeavor that will revolutionize our understanding of the universe and our place within it.

Latest From TMT

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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.

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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.

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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.