The James Webb Space Telescope has a mass of about half that of the Hubble Space Telescope, but its primary mirror, a 6.5 m (21 ft) diameter gold-coated beryllium reflector, has a collecting area over six times as large, at 25.4 m2 (273 sq ft), using 18 hexagonal mirrors with 0.9 m2 (9.7 sq ft) of obscuration for the secondary support struts.
The product of NASA‘s collaboration with the European and Canadian space agencies, Webb is seen as the successor to the Hubble Space Telescope as the largest and most powerful science observatory ever built.
With its advanced optics, Webb, a state-of-the-art technology with infrared technology and 10 billion dollars spent, will be able to examine all stages of the history of the universe, from the solar system to the most distant galaxies that can be viewed, thanks to its advanced optics.
The James Webb Space Telescope, whose development process began in 1996, was to be launched into space for the first time in 2007. However, the launch date has been constantly delayed as the telescope has undergone major changes over and over. Finally, the launch, which was delayed due to weather conditions, took place on December 25.