Which force is weakest but still shapes galaxies?
Quick Answer
Gravity is the weakest force, but it shapes galaxies because its range is infinite and masses add up over huge distances. That makes it dominant in astronomy.
The Full Story
Although gravity is extremely weak between individual particles, it becomes the architect of the universe when enormous amounts of matter are involved. Stars, gas clouds, and galaxies all influence one another through cumulative gravitational attraction. That is why planets orbit stars, stars orbit galactic centers, and clusters of galaxies form. Gravity’s weakness is outweighed by its infinite reach and the fact that matter cannot cancel it the way electric charges can cancel each other.
Key Facts
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