The Department of Astronomy is excited to share that the Mid-Infrared ELT Imager and Spectograph (METIS) project has passed its preliminary design review by the European Southern Observatory (ESO). This preliminary design assessment by ESO confirms that the baseline design meets the scientific requirements and is feasible to build by the consortium within the schedule and financial constraints of the project.

The U-M Department of Astronomy is a member of the international collaboration that has been developing METIS. When complete in 2028, it will allow astronomers to utilize the European Southern Observatory’s (ESO) Extremely Large Telescope (ELT) for mid-infrared observations at wavelengths between three and fourteen microns. The instrument will provide unparalleled high spatial and spectral resolution, as well as extraordinary sensitivity in the thermal infrared on what is expected to be the world’s largest optical/infrared telescope for the foreseeable future.  These capabilities should enable the science team, of which U-M Astronomy is a part, to make breakthrough discoveries in many areas, including the discovery and characterization of exoplanets, star and planet formation, obscured star formation in nearby galaxies, active galactic nuclei, and many others.

More Information:

Preliminary Review Announcement -

Project Website -

ESO METIS page -

U-M Astronomy Contact – Professor Michael Meyer