When the Multiple-Mirror Telescope
opened on Mount Hopkins, Arizona, in 1979, its six-mirror objective was a marvel of engineering and dynamic computer control.
For example, an experiment at the Steward Observatory's Multiple-Mirror Telescope
5-meter mirror destined to upgrade the multiple-mirror telescope
atop Mount Hopkins in Arizona.
The NNTT, a proposed multiple-mirror telescope
, would employ four separate mirrors to act together to simulate a single mirror 15 meters across, or to act separately.
Yet, as Donald Hall, director of the University of Hawaii's Institute for Astronomy, pointed out last June, "The infrared-optimized 8-meter on Mauna Kea represents a considerable scaling-down of AURA's ambitious [1980s] plans to build a 16-meter equivalent aperture multiple-mirror telescope