http://www.sciencemag.org/news/2018/05/top-stories-rival-giant-telescopes-hefty-plants-and-mystery-behind-gluten-sensitivity

Rival giant telescopes join forces to seek U.S. funding

Two U.S.-led giant telescope projects, rivals for nearly 2 decades, announced this week that they have agreed to join forces. The Giant Magellan Telescope, a telescope under construction in Chile, and the Thirty Meter Telescope, which backers hope to build atop Mauna Kea in Hawaii, have not finished acquiring the necessary partners and money. They will now work together to win funding, which could help the projects catch up to a third giant telescope, the European Extremely Large Telescope, due to begin operations in 2024.