It's just incredible.
Satoshi Tomizu, a talented glass artist in Japan, creates stunning cosmic scenes in tiny glass pendants no larger than your eyeball. Air bubbles, opals, flakes of gold and other inclusions turn each glass bubble into a busy galactic microcosm.Most of the pendants from his Space Glass serieTomizu’s work has won international awards, so it’s no surprise that his online store is currently out of stock. We suggest marveling at his incredible work while you wait!
Source: http://www.boredpanda.com/space-glass-planets-galaxies-stars-pendants-satoshi-tomizu/