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GUSSTO, the Galactic/Xtragalactic ULDB Spectroscopic Stratospheric Terahertz Observatory, is a proposed 1 meter telescope with 16-pixel cryogenic heterodyne receiver arrays at 1.4 to 4.7 THz, exploring the Milky Way in the far-infrared [OI], [CII] and [NII] lines. Currently in a Phase A study under the Mission of Opportunity category of NASA's Explorer program. 


Principal Investigator : Prof. Chris Walker

For the public
For Public

Public events include our Monday Night Lecture Series, world-reknowned Astronomy Camp and Mt Lemmon Sky Center.

For Students

A good place to start if you want to become an undergrad major or grad student, or need to find our schedule of classes.


For Scientists
For Scientists

Find telescopes and instruments, telescope time applications, staff and mountain contacts, and faculty and staff scientific interests.