In which year was the Hubble Space Telescope placed in orbit around the Earth?

The Hubble Space Telescope was placed in orbit around the Earth in 1990. This space telescope, named after the astronomer Edwin Hubble, was launched aboard the Space Shuttle Discovery during mission STS-31 on April 24, 1990. Its placement in orbit marked a significant development in astronomy, enabling scientists to obtain unprecedented views of the universe, free from the distortion of Earth's atmosphere. The data and images produced by Hubble have contributed immensely to our understanding of various cosmic phenomena, including the expansion of the universe, the life cycles of stars, and the formation of galaxies. The incorrect options do not align with the historical timeline of the Hubble's launch, as it was not operational until 1990, which is why that year is the correct answer.