What is the name of NASA’s most famous space telescope?

The name of NASA's most famous space telescope is the Hubble Space Telescope. It is renowned for revolutionizing our understanding of the universe and providing breathtaking images of distant galaxies, stars, and cosmic phenomena. Launched in 1990, the Hubble Space Telescope has played a pivotal role in numerous groundbreaking discoveries, including measuring the expansion rate of the universe, identifying new planets, and capturing images of distant galaxies in unprecedented detail. Its iconic images have not only mesmerized the public but have also significantly contributed to our knowledge of the cosmos, making it the most famous space telescope in NASA's history.