MMT Telescope (IMAGE) University of Arizona Caption The MMT Telescope is located on Mount Hopkins, 47 miles south of Tucson. When the telescope was completed in 1979, it was called the Multiple-Mirror Telescope, as it was comprised of six smaller mirrors. The smaller mirrors were replaced by a single 6.5-meter mirror in 2000, but the name MMT was retained. Credit Howard Lester/MMT Usage Restrictions This visual may only be used in conjunction with reporting on or posting of this news release. Credit must be given as indicated. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.