Space telescopes are instruments located outside Earth's atmosphere that observe celestial objects. By being above the atmosphere, they avoid distortion and light pollution, allowing for clearer images of stars, planets, and galaxies. These telescopes can detect various types of light, including visible, infrared, and ultraviolet, providing a broader understanding of the universe. One of the most famous space telescopes is the Hubble Space Telescope, launched in 1990. It has contributed significantly to our knowledge of the cosmos, capturing stunning images and helping scientists study the formation of stars, the expansion of the universe, and the presence of exoplanets.