What combination of factors makes Venus overwhelmingly bright in the twilight sky?

Answer

Its proximity to Earth and a dense, highly reflective atmosphere (high albedo).

Venus's brightness stems from being the closest planet to Earth, minimizing light travel distance, and having a dense atmosphere made of sulfuric acid clouds, which gives it extremely high reflectivity (albedo).

What combination of factors makes Venus overwhelmingly bright in the twilight sky?
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