After almost 29 years of astronomical observations,
the California Institute of Technology (Caltech) closed
the Caltech Submillimeter Observatory (CSO) in Hawaii on September 18, 2015.
As previously announced in
Caltech plans to dismantle and remove the observatory from Maunakea according to the Decommissioning Plan approved by the Board of Land and Natural Resources.
This process will be planned in close coordination with the Office of Mauna Kea Management, University of Hawaii at Hilo, to ensure that it is undertaken promptly and in a culturally and environmentally respectful manner.
Caltech is sincerely grateful to the people of Hawaii Island for the use of Maunakea for nearly three decades, enabling superb research from this excellent astronomical site for the betterment of humanity.
(2015 September 23)