During the JWST's product development, which innovative feature was specifically designed to allow the telescope to see infrared wavelengths that were previously unobservable?

The James Webb Space Telescope (JWST) represents one of the most complex product development projects in astronomical history. This engineering marvel required innovative solutions to unprecedented challenges, from its folding mirror design to its five-layer sunshield. Test your knowledge about how this groundbreaking observatory went from concept to reality through its lengthy development process.

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Its revolutionary folding primary mirror composed of 18 hexagonal beryllium segments
Its tennis court-sized, five-layer sunshield that keeps the telescope at -233°C (-388°F)
Its position at Lagrange point L2, 1.5 million kilometers from Earth
Its 6.5-meter diameter primary mirror, larger than any previous space telescope