W. M. Keck Observatory

Located atop Maunakea in Hawaiʻi, W. M. Keck Observatory is home to the world’s most scientifically productive ground-based optical and infrared telescopes. Our twin 10-meter telescopes—equipped with advanced adaptive optics—unlock high-precision views of planets, black holes, and the earliest moments of the universe.

Once called “the impossible machine,” Keck Observatory has, over the past three decades, become a premier engine of discovery—expanding what we know about the cosmos from right here on Earth.

Our work takes place on Maunakea, a place of profound cultural significance to the Native Hawaiian community. We are deeply grateful for the privilege to observe from this sacred mountain and are committed to responsible stewardship of the mauna and meaningful engagement with the Hawaiʻi Island community.