The James Clerk Maxwell Telescope (JCMT) is a large radio telescope located on the summit of Mauna Kea in Hawaii. It is primarily used for observing submillimeter wavelengths of light, which allows astronomers to study cold gas and dust in space. The telescope plays a crucial role in understanding the formation of stars and galaxies. Operated by the East Asian Observatory, the JCMT has been in operation since 1987. It features a 15-meter dish and is one of the most powerful telescopes of its kind. The data collected helps researchers explore various cosmic phenomena, including the early universe and the lifecycle of interstellar matter.