Which of these telescopes, launched in 1990, became one of the most famous and commercially successful astronomy products, spawning numerous merchandise lines and making space observation accessible to the public?

The astronomy industry has seen some revolutionary products that changed how we observe and understand the universe. From powerful telescopes to sophisticated software, these innovations have made stargazing more accessible while advancing scientific discovery. Test your knowledge about some of the most influential commercial products in astronomy history and their impact on both amateur stargazing and professional research.

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Hubble Space Telescope
James Webb Space Telescope
Spitzer Space Telescope
Kepler Space Telescope