This is a must-have Christmas ornament for space fans: The Voyager Golden Record. On Oct. 31st, the students of Earth to Sky Calculus launched it to the stratosphere onboard a cosmic ray research balloon.
 
The 3-inch aluminum disk traveled 104,302 feet above the Sierra Nevada mountains of California, experiencing near-vacuum, cosmic rays, and space-like cold. It's the closest thing on Earth to the actual Golden Record.
 
Like the actual Golden Records, the surface of the ornament is imprinted with instructions intended for extraterrestrials, telling them how to play phonographs now sailing through interstellar space onboard the Voyager probes.
 
It comes with a red ribbon for hanging on your Christmas tree! You'll also receive a greeting card showing the ornament in flight and extra materials decoding the markings on the disk.