☕ Sip the Universe: Your Daily Dose of Cosmic Caffeine! Hand wash only to keep your cosmic companion shining bright. Ideal for science lovers and aspiring astronomers alike. Gaze at the planets when cold, and unveil their secrets when hot. Designed with a cozy handle for your daily caffeine fix. Watch the universe unfold with heat reveal technology! 12 oz capacity Space-themed Reusable The Star System Coffee Mug is a 12 oz black ceramic cup that transforms with heat, revealing stunning illustrations of our solar system. Perfect for gifting, this reusable mug is designed for comfort and care, making it a must-have for anyone who loves space and science.