[{SlideShowNav}] !!!Keck Observatory [{Image src='1220us.jpg' width='650' height='487' alt='Keck Observatory ' class='image_left' popup='false'}] [{SET customtitle='Keck Observatory '}] \\ The Keck Observatory [{GoogleMap location='W. M. Keck Observatory, Mauna Kea Access Road, Hilo, Hawaii, USA' zoom='15'}] on Mauna Kea, Hawaii is considered one of the most important astronomical viewing sites in the world. The white patch in the foreground is snow.