The Ariana 5 Ariana Spacecraft was launched by NASA's James Webb Space Telescope on Thursday, December 23, 2021, to the launch pad at the Guyana Space Center in Coro, France. The James Webb Space Telescope is a large infrared telescope with a primary mirror of 21.3 feet (6.5 meters). The observatory will study every stage of cosmic history - from within our solar system to the farthest galaxies visible in the early universe.