Once completed, these telescopes, with primary gathering mirrors 25 and 30 meters in diameter, would be about 100 times more sensitive than any telescope currently in operation. The investment would entail bailing out and combining the efforts of two rival projects, the Giant Magellan Telescope and the Thirty Meter Telescope.
American astronomers on Thursday called for the nation to invest in a new generation of “extremely large” multibillion-dollar telescopes that would be bigger than any now on Earth or orbiting in space.
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