Which critical product design innovation allowed the James Webb Space Telescope to fit inside its launch vehicle while still providing a primary mirror significantly larger than Hubble's?

The James Webb Space Telescope (JWST) represents one of the most complex product development projects in astronomy history. This engineering marvel required innovative solutions to unprecedented challenges, from its folding mirror design to its ultra-sensitive infrared sensors. Test your knowledge about the development journey of this groundbreaking astronomical tool that's revolutionizing our understanding of the cosmos.

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The segmented, folding mirror design with 18 hexagonal beryllium segments
A revolutionary inflatable mirror that expands in space using pressurized gas
An origami-inspired telescoping design that extends like a camera lens
A liquid mirror technology that solidifies when exposed to the vacuum of space