noun a type of galaxy characterized by a central bulge and spiral arms extending from the center
In the field of astronomy, a spiral galaxy refers to a type of galaxy characterized by a flat, rotating disk with spiral arms radiating outwards from a central bulge.
Astrophysicists study the formation, evolution, and dynamics of spiral galaxies to understand the structure and behavior of these cosmic structures.
Spiral galaxies play a key role in cosmological studies as they provide insights into the large-scale structure of the universe and the distribution of matter.
Researchers in galactic dynamics analyze the gravitational interactions and motions of stars, gas, and dark matter within spiral galaxies to model their behavior.
Spiral galaxies are classified based on their shape, structure, and characteristics, with various subtypes such as barred spiral galaxies and grand design spirals.
A science fiction writer may use the term 'spiral galaxy' when describing a fictional universe with multiple spiral galaxies.
An astronomer may study the structure and formation of spiral galaxies in the universe.
An astrophysicist may analyze the dynamics and evolution of spiral galaxies using mathematical models and simulations.
A science educator may use the term 'spiral galaxy' when teaching students about different types of galaxies in the universe.