Why Are Most Galaxies Spiral-Shaped? The structure of spiral galaxies is more complex than we thought. Here’s how the laws of physics contribute to the shaping of galaxies. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How California’s Drought Affects The World How To Make Exploding Tipped Blow Darts How Engineers Learn From Evolution Does Water Swirl the Other Way in the Southern Hemisphere? How 3-D printed arms are changing kids’ lives around the world How Fast Does A Thought Travel?