Which component in large observatory telescopes typically has the longest supply chain lead time, often taking over 2 years from order to delivery?

The astronomy industry relies on complex global supply chains to create the advanced telescopes that help us explore the universe. From specialized glass manufacturing to precision electronics, the creation of a modern telescope involves multiple countries and dozens of suppliers. Test your knowledge about how these incredible instruments make their way from raw materials to observatory domes around the world!

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Primary mirror blanks (the large glass discs that form telescope mirrors)
Digital sensor arrays for capturing images
Adaptive optics systems that correct for atmospheric distortion
Observatory dome mechanisms that house and protect telescopes