Which packaging innovation, introduced in the 1960s, revolutionized food preservation by creating a vacuum seal and was originally developed as part of NASA's space program?

Packaging innovations have dramatically transformed how products reach consumers and remain fresh over time. Beyond mere protection, modern packaging serves multiple purposes including extending shelf life, providing important product information, enhancing brand recognition, and addressing environmental concerns. This trivia question explores a groundbreaking packaging innovation that revolutionized food preservation and convenience in the 20th century.

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Retort pouch (flexible packaging that can withstand thermal processing)
Tetra Pak (aseptic packaging for liquid foods)
Blister packaging (pre-formed plastic attached to cardboard)
Modified atmosphere packaging (MAP) with CO2 injection