Extragalactic astronomy is the study of celestial objects and phenomena outside of our own galaxy, the Milky Way.
Dark Matter Explained
Dark matter is a mysterious, invisible substance that makes up a significant portion of the universe and influences the formation and evolution of galaxies.
Expanding Universe Theory Explained
The expanding universe theory explains the continuous growth of the universe and the movement of galaxies away from each other.
Galaxy Evolution Explained
Galaxy evolution refers to the study of how galaxies form, grow, and change over time.