Welcome to the MMT Observatory

Latest News

  • Click here for more MMTO news and highlights
  • MMTO Observing Schedule

    The observing schedule for August 22-December 31, along with program titles, can be found here.

  • Summer Tour Update

    Summer tours are currently on hold due to road work scheduled for the Mt. Hopkins Road. We appreciate your patience while the needed maintenance is taking place. Current plans are to resume the tours in September. Updates will be posted here so check back!

  • Summer Shutdown Schedule

    Summer shutdown began on Tuesday, July 25. The observatory will reopen on Tuesday, August 22.