Oct. 31Ariane 5 • James Webb Space Telescope
Launch window: TBD
Launch site: ELA-3, Kourou, French Guiana
Launch site: ELA-3, Kourou, French Guiana
Arianespace used an Ariane 5 ECA rocket, designated VA256, to launch the James Webb Space Telescope, a flagship observatory developed by NASA, the European Space Agency, and the Canadian Space Agency. JWST is the largest space telescope ever built, with a deployable mirror measuring 21.3 feet (6.5 meters) in diameter and four scientific instruments to observe the universe in infrared wavelengths. The mission will study the formation of galaxies, stars, and planets. The Ariane 5 ECA rocket will launch JWST on a trajectory toward its operating position at the L2 Lagrange point nearly a million miles (1.5 million kilometers) from Earth. [Feb. 23]