👉 The bold engineering behind the James Webb Space Telescope (JWST) involves several revolutionary elements. Its massive 6.5-meter segmented primary mirror, composed of 18 hexagonal gold-coated beryllium segments, must fold and unfold in space to fit within the launch vehicle's constraints before deploying into its final configuration. The telescope's sunshield, a five-layer structure with a thickness of just 0.25 millimeters, is designed to maintain the extreme cold needed for its infrared observations by blocking out heat from the Sun, Earth, and Moon. Additionally, the JWST's innovative Ariane 5 rocket, modified to accommodate the telescope's size and weight, employs advanced thermal protection and precision alignment systems to ensure the delicate instruments remain stable and aligned in the harsh conditions of space. These bold engineering feats collectively enable JWST to observe the universe in unprecedented detail, from the formation of the first galaxies to the atmospheres of exoplanets.