The international James Webb Space Telescope mission has successfully passed the final mission analysis review for its launch on an Ariane 5 rocket from Europe's Spaceport in French Guiana. Canada contributed Webb's Fine Guidance Sensor and one of its four science instruments called NIRISS. ESA was responsible for the development and qualification of Ariane 5 adaptations for the Webb mission and for the procurement of the launch service. Webb is an international partnership between NASA, the European Space Agency (ESA) and the Canadian Space Agency. Ariane 5 will release Webb directly on a path towards L2 on which it will continue for four weeks, eventually arriving at L2, which is four times farther away than the Moon is from Earth. Ariane 5 is well suited for science satellites with proven capability to send missions to the second Lagrange Point ( L2). Teams will prepare the telescope and the launch vehicle, an Ariane 5 rocket, and then join the telescope with its rocket for a momentous liftoff. The European Spaceport's preparation facilities are ready for Webb's arrival. It was shipped in its folded position in a 30 m long container which, with auxiliary equipment, weighs more than 70 tonnes. ![]() Though the telescope weighs only six tonnes, it is more than 10.5 m high and almost 4.5 m wide when folded. On October 12, Webb arrived in French Guiana from California on board the MN Colibri, which sailed the Panama Canal. Webb arrives at Pariacabo harbour in French Guiana from California on board the MN Colibri. In exchange, Canada will receive a guaranteed share of Webb's observation time, making Canadian scientists some of the first to study data collected by the most advanced space telescope ever built. the Near-Infrared Imager and Slitless Spectrograph (NIRISS), one of the telescope's four science instruments, which will enable scientists to observe distant galaxies and study exoplanets' atmospheres to determine their potential for supporting life. ![]()
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