NASA @NASA
A Mystery at the Milky Way 🕵🏽♂️ A cosmic tug-of-war is unfolding between two dwarf galaxies but which one is doing the pulling, and whose being pulled? Discover how, using @NASAHubble data, scientists were able to unravel this “whodunit” mystery: https://t.co/5LWxVYs3nH https://t.co/Jvb2ZgkvOr — PolitiTweet.org