What is the primary factor that makes observing the Milky Way difficult in urban areas?
Answer
Light pollution
Light pollution is the phenomenon caused by artificial light from streetlights, buildings, and vehicles. This scattered light effectively washes out the faint, diffuse glow produced by the galactic band of the Milky Way. To clearly see the structure of the galaxy, one must be in a location with very little light pollution, such as a designated dark-sky park or a rural area, where the contrast between the stars and the night sky is not compromised by human-made light sources.

#Videos
What Is the Milky Way? - YouTube
The Milky Way: Crash Course Astronomy #37 - YouTube
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