a telescope sitting on top of a mountain above the clouds

Pan-STARRS Observatory Caption: The Pan-STARRS Observatory is a 1.8-meter telescope located at the summit of Haleakalā, on Maui, Hawaii. For four years beginning in May 2010, the Pan-STARRS observatory surveyed the entire three-quarters of the sky visible from Hawaii many times in many colors of light. One of the survey's goals was to look for moving objects and transient or variable objects, including asteroids that could potentially threaten the Earth. Credits: R. Ratkowski