Which space telescope's product launch was severely delayed by manufacturing defects, resulting in a $3 billion repair mission after its mirror was found to have a spherical aberration flaw?

In the world of astronomy, technological advancements and product innovations have transformed how we observe the cosmos. Throughout history, major telescope launches have marked significant milestones in our ability to study the universe. This poll tests your knowledge about one of the most controversial and significant telescope product launches in recent astronomical history.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Hubble Space Telescope
Spitzer Space Telescope
Chandra X-ray Observatory
Kepler Space Telescope