On the first full night of science operations since the March shutdown, a team led by Chuck Steidel and Yuguang Chen of Caltech observed from their homes. Pictured is a slice of a KCWI 3D data ‘cube’ they captured of a galaxy 1.5 billion light-years away.

After nearly a two-month shutdown, we are excited to announce we have resumed science operations. On May 16, we completed our first full night of observing.

Since May 7, when the Governor included observatories in the state’s list of low-risk organizations that are permitted to reopen, our W. M. Keck Observatory ‘ohana has been carefully working towards resuming full operations while maintaining social distancing and adhering to enhanced safety protocols.

We are grateful to be able to conduct science once again. Click HERE for a message from our Chief Scientist, Dr. John O’Meara, about our first night back on sky.

Recognizing the need to stay connected while many of us continue to shelter in place, we have partnered with our Maunakea Observatories (MKO) ‘ohana to launch a series of remote science talks, sharing the latest astronomical research that our MKO astronomy community is conducting here in Hawaii.

To learn more about the Maunakea Observatories Science Talks and find out when you may be able to catch one, visit:


Observing time on the Keck 10-m telescopes is available to members of several communities: The University of California (UC), The California Institute of Technology (Caltech), the National Aeronautics and Space Administration (NASA), the University of Hawaii (UH), Yale University, the Subaru (NAOJ) community through an observatory exchange, the National Optical Astronomy Observatory (NOAO) through the NSF’s Telescope System Instrumentation Program (TSIP), and the Gemini community* through an observatory exchange.

Each community has its own Time Allocation Committee (TAC) that reviews proposals semi-annually and assigns time based on the scientific merit of each proposal. Those time assignments are then used to generate the night-by-night schedule for each of the telescopes.

Observing time on the Keck telescopes is not available to the general public.

* not currently available.

Information on this year’s Keck Science Meeting can be found here: https://kecksciencemeeting.org/

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