What phenomenon is the vast majority of the linear satellite sightings attributed to?

Answer

SpaceX's Starlink satellite constellation

The widespread sightings of evenly spaced lights moving coherently are attributed to the deployment of SpaceX's Starlink satellites intended for global internet coverage.

What phenomenon is the vast majority of the linear satellite sightings attributed to?

#Videos

Explaining the straight line of lights in the night sky - YouTube

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