Mission Overview
The twin Keck Observatory telescopes sit atop Mauna Kea on Hawai’i, and are the world’s most scientifically productive optical and infrared telescopes. Each telescope weighs 300 tons and operates with nanometer precision. The telescopes’ primary mirrors are 10-meters in diameter and are each composed of 36 hexagonal segments that work in concert as a single piece of reflective glass.

The W. M. Keck Foundation funded both the original Keck I telescope and six years later, its twin, Keck II. The project was managed by the University of California and the California Institute of Technology. The Keck I telescope began science observations in May 1993; Keck II saw first light in October 1996. In 1996, the National Aeronautics and Space Administration (NASA) joined as a one-sixth partner in the Observatory.

Today Keck Observatory is a 501©3 supported by both public funding sources and private philanthropy. The organization is governed by the California Association for Research in Astronomy (CARA), whose Board of Directors includes representatives from the California Institute of Technology and the University of California, with liaisons from NASA and the Keck Foundation.

Relevance to Astrobiology
The twin Keck telescopes are the largest fully steerable optical/infrared telescopes on Earth and are able to see fainter and further into the cosmos than any other current research facility. For decades, the Keck Observatory has provided invaluable data for exoplanet researchers as well as planetary scientists studying celestial objects in our own solar system.

NASA Astrobiology Involvement
Data from Keck informs numerous studies supported by the NASA Astrobiology Program. Observations by Keck have been used to acquire direct images of giant exoplanets, study water in comets within the Solar System, reveal clues about the composition of ice at the surface of Jupiter’s moon Europa, and many other scientific studies relevant to astrobiology research.

The Astrobiologists
Keck data contributes to exoplanet studies performed by researchers supported by elements of the NASA Astrobiology Program, including NExSS.