- from Stars & Nebulae
750L - 890L
Spiral galaxies are the star factories of the universe. A spiral galaxy’s arms are lanes where dust and gas pile up.
Raw dust and gas go into one side of a spiral arm. Newborn stars come out the other. The last step in star birth is an open star cluster. That’s where a flock of young stars drift through space until they slowly spread apart like autumn leaves in the wind.