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Which fundamental force has the greatest effect on the large-scale structure of the universe?
Quick Answer
Gravity has the greatest effect on the large-scale structure of the universe. It shapes galaxies, clusters, and the cosmic web.
The Full Story
On cosmic scales, gravity dominates because it acts over infinite distance and always accumulates as matter grows more massive. It pulls gas into stars, groups stars into galaxies, and binds galaxies into clusters. Modern cosmology shows that visible matter is not enough to explain the motions we observe, so dark matter is also invoked in gravitational models. Gravity therefore underlies the architecture of the universe from planetary systems to the largest observed structures.
Key Facts
1.Gravity has infinite range
2.Galaxies and clusters are held together by gravity
3.Dark matter is inferred mainly through gravitational effects
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Suggested video title for this topic:
"The force that built the cosmic web"
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