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Latest News

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  • MMIRS returns to the MMTO!

    The MMT and Magellan Infrared Spectrograph (MMIRS), commissioned at the MMTO in 2009, has returned from the Magellan-Clay telescope in Chile. It will be available as part of our suite of instruments later this year. More information can be found here.

  • Milky Way Inner Halo

    Researchers at the CfA have released a new paper studying the halo of our Milky Way, using data from the MMT's Hectospec of more than five thousand stars. The global motions of the stars help decode information about the mass, structure and formation of the Milky Way. They find a strange "discontinuity" region about 30,000 light years away, which may be attributable to a star stream, an association of orbiting stars that may once have been a globular cluster or dwarf galaxy that has been torn apart by tidal forces. Read more here.

  • Engineer position opening

    The MMTO has an opening for an Engineer (job #58645). Details and an online application can be found here.