As the story in the film “Guardians of the Galaxy” goes, character Peter Quill’s dying mother made him a mix called “Awesome Mix Vol. 1” that he rocked out to with his Walkman while he bounced around the galaxy for 26 years. I did a deep dive into the question: would that mixtape have lasted for 26 years in space? To answer this question, I use a tub of liquid nitrogen to determine if the Walkman and cassette could have truly withstood the test of space.