Edge On

The universe unfolds sideways.
 
Viewing a galaxy edge-on offers a unique perspective, revealing its thin disk structure composed of stars, gas, and dark matter. This vantage point allows astronomers to study the galaxy's rotation curve, offering clues about the distribution of mass and the presence of dark matter. Observing galaxies like the Sculptor Galaxy and the Needle Galaxy edge-on helps us understand the dynamics and evolution of these colossal star systems.