Thirty Meter telescope will resume construction after legal win

The Thirty Meter Telescope (TMT) has cleared the last legal hurdle to resume construction on Hawaii’s Big Island.

Hawaii’s Board of Land and Natural Resources issued a fresh construction permit in September 2017, which opponents appealed. The latest ruling upholds that permit.

This is one of three new giant telescopes for a new era of ground-based observing. The Giant Magellan Telescope and the European Extremely Large Telescope are both under construction in Chile. The Thirty Meter Telescope is a multinational project involving two universities in California, plus the governments of Canada, China, India and Japan.