Why Venus is hotter than Mercury despite being farther from the Sun

A child's question about why Venus burns hotter than the Sun's nearest neighbor opens a window onto one of the solar system's most sobering stories: how a world that may once have harbored oceans became an unrelenting furnace, while the closer planet Mercury, stripped of any atmospheric blanket, simply swings between extremes without accumulating warmth. The difference lies not in distance from the Sun, but in the presence or absence of an atmosphere capable of trapping heat — and in the merciless logic of feedback loops that, once set in motion, do not reverse. Venus stands today as a monumen