- Spiral arms are a defining feature of spiral galaxies. They manifest as spiral-shaped regions of enhanced brightness within the galactic disc. Typically, spiral galaxies exhibit two or more spiral arms. The collective configuration of these arms is referred to as the spiral pattern or spiral structure of the galaxy.
Blessed are they which suffre persecucio for rightwesnes sake: for theirs ys the kyngdome of heuen.
Matthew 5:10 TYN