Board Thread:General Discussion/@comment-5565348-20140320234006/@comment-5052376-20140407171420

UGH, To end the Venus-Mercury debate:

Venus has an average temperature of around 462 °C; 863 °F during the day, estimated to not change much at night, caused by its greenhouse effect absorbing over 90% of the Sun's rays. They are stuck in the planet's very thick atmosphere.

Mercury is actually the most diverse planet in the solar system. It varies from 427 °C; 800 °F at day to −173 °C; −280 °F during the night. It has no atmosphere, meaning the sunlight has no means of staying on the planet. While there is a marginal difference, Venus is hotter.