/sci/ - Science & Math

>>12243350
it's for insulation, it reflects light so things don't get too toasty or cold inside
usually it's coated with some kapton on the outside for better reflection of infrared that gives it the gold color, but it's basically the same aluminized mylar that emergency blankets are made out of except with multiple layers of the stuff separated by thin mesh to keep them out of contact with each other to minimize heat conduction