James Webb Space Telescope (2021)

Launched on 25 December 2021, the James Webb Space Telescope is the largest and most powerful space observatory ever built, with a 6.5-metre primary mirror and the ability to observe infrared light from the first galaxies formed 200 million years after the Big Bang. Its first images, released in July 2022, achieved resolutions 100 times sharper than Hubble for comparable objects and revealed previously invisible structures in nebulae, exoplanet atmospheres, and deep-field galaxies.