There is a mystery afoot at NASA's Goddard Space Flight Center -- the case of the mylar mystery to be exact. The PBS show "The History Detectives" recently investigated questions surrounding one clue -- a small, unassuming, silver sample of mylar with pink residue on one side. The mystery to be solved was whether or not this bit of mylar was from Goddard's Echo II satelloon project. Satelloons are a combination of satellites and balloons which were constructed out of bright, metallic mylar for increased visibility.

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