NASA @NASA
🌌 A detail shot of a dizzying array of stars and clouds of dust and gas that make up the vast spiral galaxy on the tail of the Great Bear 🐻. The image shown here from @NASAHubble contributes only a small fraction of the galaxy's total mass: https://t.co/XNt0xzVvc0 https://t.co/xOZTwrJVPq — PolitiTweet.org