Terrestrial Planet · Hottest

Venus

Shrouded in thick clouds of sulfuric acid, Venus is the hottest planet in the Solar System. Its runaway greenhouse effect keeps surface temperatures at 465°C. A day on Venus is longer than its year, and it rotates backwards.

Overview

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Atmosphere composition

Carbon Dioxide 96.5%
Nitrogen 3.5%
Sulfur Dioxide 0.015%
Argon 0.007%
Other traces <0.01%

Notable features

  • Maxwell Montes - highest mountain at 11 km
  • Maat Mons - massive shield volcano
  • Retrograde rotation - Sun rises in the west
  • Atmospheric pressure 92× that of Earth

Space missions

Mission Year Notes
Venera 7 1970 First soft landing on another planet
Magellan 1989-1994 Radar-mapped 98% of Venus surface
Venus Express 2005-2014 ESA orbiter studying atmosphere
DAVINCI+ 2029 planned NASA probe to study atmosphere & surface

NASA images

Images courtesy of NASA Image & Video Library.