Building the Mighty Keck Observatory – Credit: JPL

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In 1985, construction began on what was to become, and still remain, the biggest optical/infrared telescopes on Earth. Since first science in 1993 for Keck I and 1996 for Keck II, the two telescopes are the most scientifically productive telescopes on Earth, publishing more papers per telescope than any of its peers. 

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Keck 1 HIRESR is scheduled with NASA observers. Keck 2 NIRSPEC/NIRC2-NGS is scheduled for NASA observers. Sun set 07:08:00pm rise 05:48:00am
We are setting up HIRESR on Keck 1 for CIT observers, NIRSPEC/NIRC2-NGS on Keck 2 for NASA observers. Sun set 07:09:00pm rise 05:48:00am
UCB observers will work with HIRESR tonight. And NASA/UCSD observers will work with NIRSPEC/NIRC2-NGS. Sun set 07:09:00pm rise 05:47:00am
Congratulations Andrea Ghez @UCLA and #GalacticCenter team! Love, W. M. Keck Observatory bit.ly/1DWqDI0
SCIENCE NEWS: Astronomers @keckobservatory & @NASA_Hubble use microlensing to find Uranus-sizd #exoplanet bit.ly/1DcPixb