What type of galaxy has the ability to form new stars and is visually striking?

A spiral galaxy is characterized by its distinctive structure, which includes a flat, rotating disk containing stars, gas, and dust, along with a central concentration of stars known as the galactic bulge. The arms of a spiral galaxy are where new stars are actively forming, often resulting in bright, visually striking regions known as nebulae.

This star formation occurs primarily in the spiral arms due to the high concentration of gas and dust, which provides the necessary material for new stars to develop. Additionally, the beauty of spiral galaxies is highlighted by their structured arms that often feature brightly colored regions, making them some of the most visually appealing objects in the universe.

Other galaxy types, such as elliptical galaxies, tend to have older stars and lack the raw materials (gas and dust) necessary for forming new stars, which diminishes their capacity for ongoing star formation. Irregular galaxies are also capable of forming new stars but do not have the same structured, visually striking appearance as spiral galaxies. A galactic nucleus, while a central component of many galaxies, does not refer to a type of galaxy itself and is not associated specifically with star formation in the same way.