A space telescope is an astronomical instrument located outside Earth's atmosphere, designed to observe celestial objects without the interference of atmospheric distortion. By being in space, these telescopes can capture clearer images and a wider range of wavelengths, including ultraviolet and infrared light, which are often blocked by the atmosphere. One of the most famous space telescopes is the Hubble Space Telescope, launched in 1990. It has provided invaluable data and stunning images of galaxies, nebulae, and other astronomical phenomena, greatly enhancing our understanding of the universe and contributing to significant discoveries in astrophysics and cosmology.