JWST (James Webb Space Telescope): The Most Expensive Space Telescope in History

The James Webb Space Telescope, an evolution from the Hubble Space Telescope, stands as a testament to human endeavor in understanding the cosmos. Launched in 2021, its journey faced multiple challenges ranging from unexpected mechanical issues to environmental factors, causing numerous delays. However, once in place, Webb promises to elevate space observation to an unprecedented level. Its primary objective is to explore the formation processes of ancient stars. While Hubble provided glimpses into the universe from up to 13.4 billion years ago, Webb, thanks to its advanced infrared observation capabilities, could extend this vision by another 400 million years. This allows it the potential to capture light from just after the Big Bang. Unlike Hubble, which orbits Earth, Webb resides 1.5 million kilometers away at Sun-Earth Lagrange Point 2 (L2), where it can observe celestial phenomena without Earth’s atmospheric interference. However, this distance also means it cannot be conveniently repaired or adjusted like Hubble. Webb does not solely focus on observing ancient galaxies; it also studies the atmospheres of distant exoplanets, providing insights into their composition and climates. The James Webb Space Telescope represents humanity’s sharpest eye in the cosmos, promising to unravel age-old cosmic mysteries.