Atmosphere
Mostly carbon dioxide beneath dense sulfuric-acid clouds.
Acquiring mission data
Apex AndromedaApex AndromedaAcquiring mission data
Planet 02 · Terrestrial planet
Earth-sized, backwards-spinning, and catastrophically hot.
Venus is Earth's near-twin in size and a master class in how badly similar ingredients can diverge. A carbon-dioxide atmosphere, sulfuric-acid clouds, and a runaway greenhouse keep the surface hot enough to melt lead.
World profile
Mostly carbon dioxide beneath dense sulfuric-acid clouds.
Volcanic plains, mountains, tessera terrain, impact craters, and coronae.
About 872 °F (467 °C)
None
Composition
Field notes
A Venus day is longer than its year.
Venus rotates backwards relative to most planets, so the Sun would rise in the west.
Magellan mapped about 98% of the surface through radar because ordinary cameras cannot see through the clouds.
Sourced image archive
Every image keeps its credit, capture date, description, and original source. Mission imagery links back into the same Andromeda mission catalog.
Venus portrait
A computer-simulated globe built mainly from Magellan radar mapping, with remaining gaps filled from Venera, Pioneer Venus, and Arecibo observations.
Connected mission archive
Flybys, orbiters, landers, atmospheric probes, rovers, launch missions, gravity assists, and system satellites are linked here when they exist in the Andromeda catalog.
Open mission browser →48 linked missions · showing 25–48
Primary facts source
NASA Science · Venus facts ↗
Associations use destination records plus a curated cross-world manifest for flybys and gravity assists. Mission-name collisions such as Project Mercury and Saturn launch vehicles are deliberately kept with Earth unless they actually visited the planet. Technically obvious; historically necessary.
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