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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LRIS-ADC and ESI are the instruments tonight. Observers are from UCSC and CIT. Sun set 06:52:00pm rise 05:49:00am
Institute for Astronomy Press Release: A Cold Cosmic Mystery Solved bit.ly/1P7rBI6
Tonight's schedule is LRIS-ADC on Keck 1 and ESI on Keck 2 for our lucky observers from UCSC and ANU. Sun set 06:52:00pm rise 05:50:00am
The sky is ready for LRIS-ADC and ESI. Our observers from UC-lbnl and UH are also ready. Sun set 06:51:00pm rise 05:51:00am
Keck 1 LRIS-ADC is scheduled with UC-lbnl observers. Keck 2 DEIMOS is scheduled for NASA observers. Sun set 06:51:00pm rise 05:51:00am