Which astronomical product launch was famously delayed for years due to a manufacturing flaw in its primary mirror, but after repair became one of NASA's most successful space-based observatories?

The astronomy industry has seen numerous groundbreaking product launches that forever changed how we observe the cosmos. From revolutionary telescopes to space-based observatories, these technological leaps have expanded our understanding of the universe. This poll tests your knowledge about one of the most significant product launches in modern astronomical history - a moment that transformed both professional research and amateur stargazing.

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

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