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Why is Venus hotter than Mercury, when Mercury is closer to the Sun?
Science Lead Report

Why is Venus hotter than Mercury, when Mercury is closer to the Sun?

While Mercury is closer to the Sun, Venus maintains higher surface temperatures due to its dense, carbon dioxide-rich atmosphere that traps heat. This phenomenon serves as a vital case study for planetary climate evolution and atmospheric science.

By Niko Vale · 13 July 2026 · 3 min read