TMT cost estimate increases to $2.4B

  • Squires

  • Stone

  • Tribune-Herald file photo TMT opponents listen to music and visit with each other July 23, 2019, on Maunakea Access Road.

  • An artist’s rendering of TMT against a backdrop of other Maunakea telescopes.

HONOLULU — The cost to build the Thirty Meter Telescope is now estimated to have ballooned by a billion dollars.