From the side, a spiral galaxy becomes a blade of light. NGC 4565—the Needle Galaxy—is one of the cleanest edge-on views we have of a large spiral, lying 30 to 50 million light-years away in Coma Berenices. Seen nearly perfectly edge-on, it appears as a razor-thin streak of starlight sliced by dark, winding dust lanes that cut across a bright central bulge. That orientation is a gift. Instead of looking down into the face of a spiral, we look along its plane, so the thinness of the stellar disk, the vertical reach of its dust, and the structure of its bulge are laid out in profile. Long stacked exposures bring out the faint outer envelope and the subtle contrasts that remain invisible to the eye, revealing how little vertical thickness separates the billions of stars orbiting in the disk from the emptier space above and below it. The Needle is often held up as a proxy for how the Milky Way itself might look from outside. A dense central region—almost certainly dominated by a supermassive black hole—anchors the system, while the dark lanes that cross the disk are made of cold gas and fine dust that absorb the light of the stars behind them. Studying galaxies like NGC 4565 helps astronomers measure how thin a stellar disk can remain, how dust is distributed through the interstellar medium, and how such fragile structures persist and continue forming stars for billions of years. Image credit: Brandon O’Meal.